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data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u8fd9\u91cc\u5c55\u793a\u7684\u662f\u4e00\u4e2asvg\u683c\u5f0f\u7684\u56fe\u7247\uff0c\u5f53\u7136\u6211\u4eec\u8fd8\u53ef\u4ee5\u52a0\u8f7d\u4efb\u4f55\u6d4f\u89c8\u5668\u652f\u6301\u7684\u683c\u5f0f\u7684\u56fe\u7247\u3002\ndata:image\/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0c......<\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u5b57\u7b26\u4e32\u5c31\u662f\u57fa\u4e8eBase64\u7f16\u7801\u5f97\u6765\u7684\uff0c\u5176\u4e2d<code>base64,<\/code>\u540e\u9762\u90a3\u4e00\u957f\u4e32\u7684\u5b57\u7b26\u4e32\uff0c\u5c31\u662fBase64\u7f16\u7801\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<p>\u6211\u4e0d\u662f\u6765\u8bb2\u6982\u5ff5\u7684\uff0c\u76f4\u63a5\u5207\u5165\u6b63\u9898\uff0c<strong>\u56fe\u7247\u7684 base64 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\u6b63\u597d\u80fd\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u56fe\u7247\u7684 base64 \u7f16\u7801\u957f\u4ec0\u4e48\u6837\u5b50\u5462\uff1f\u4e3e\u4e2a\u6817\u5b50\u3002<a rel=\"noreferrer noopener\" href=\"http:\/\/www.google.com\/\" target=\"_blank\">www.google.com<\/a>&nbsp;\u7684\u9996\u9875\u641c\u7d22\u6846\u53f3\u4fa7\u7684\u641c\u7d22\u5c0f\u56fe\u6807\u4f7f\u7528\u7684\u5c31\u662fbase64\u7f16\u7801\u3002\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-1024x127.png\" alt=\"\" class=\"wp-image-6734\" width=\"556\" height=\"69\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-1024x127.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-300x37.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-768x95.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-1536x190.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-830x103.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-230x28.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-350x43.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269-480x59.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-269.png 1744w\" sizes=\"(max-width: 556px) 100vw, 556px\" \/><\/figure><\/div>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/\u5728css\u91cc\u7684\u5199\u6cd5\n#fkbx-spch, #fkbx-hspch {\n  background: url(data:image\/gif;base64,R0lGODlhHAAmAKIHAKqqqsvLy0hISObm5vf394uLiwAAAP\/\/\/yH5B\u2026EoqQqJKAIBaQOVKHAXr3t7txgBjboSvB8EpLoFZywOAo3LFE5lYs\/QW9LT1TRk1V7S2xYJADs=) no-repeat center;\n}\n\n\n\/\/\u5728html\u4ee3\u7801img\u6807\u7b7e\u91cc\u7684\u5199\u6cd5\n&lt;img src=\"data:image\/gif;base64,R0lGODlhHAAmAKIHAKqqqsvLy0hISObm5vf394uLiwAAAP\/\/\/yH5B\u2026EoqQqJKAIBaQOVKHAXr3t7txgBjboSvB8EpLoFZywOAo3LFE5lYs\/QW9LT1TRk1V7S2xYJADs=\">\n\n\n<\/pre>\n\n\n\n<p><strong>Base64\u7f16\u7801\u65b9\u5f0f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u5c31\u662f\u5305\u62ec\u5c0f\u5199\u5b57\u6bcda-z\u3001\u5927\u5199\u5b57\u6bcdA-Z\u3001\u6570\u5b570-9\u3001\u7b26\u53f7&#8221;+&#8221;\u3001&#8221;\/&#8221;\u4e00\u517164\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u96c6\uff0c\uff08<strong>\u53e6\u52a0\u4e00\u4e2a\u201c=\u201d\uff0c\u5b9e\u9645\u662f65\u4e2a\u5b57\u7b26<\/strong>\uff09\u3002\u4efb\u4f55\u7b26\u53f7\u90fd\u53ef\u4ee5\u8f6c\u6362\u6210\u8fd9\u4e2a\u5b57\u7b26\u96c6\u4e2d\u7684\u5b57\u7b26\uff0c\u8fd9\u4e2a\u8f6c\u6362\u8fc7\u7a0b\u5c31\u53eb\u505abase64\u7f16\u7801\u3002<\/p>\n\n\n\n<p>Base64\u662f\u57fa\u4e8e64\u4e2a\u53ef\u6253\u5370\u5b57\u7b26\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u7f16\u89e3\u7801\u65b9\u5f0f\u3002<br>\u6b63\u56e0\u4e3a\u53ef\u7f16\u89e3\u7801\uff0c\u6240\u4ee5\u5b83\u4e3b\u8981\u7684\u4f5c\u7528\u4e0d\u5728\u4e8e\u5b89\u5168\u6027\uff0c\u800c\u5728\u4e8e\u8ba9\u5185\u5bb9\u80fd\u5728\u5404\u4e2a\u7f51\u5173\u95f4\u65e0\u9519\u7684\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u767e\u5ea6\u767e\u79d1\u4e2d\u5bf9Base64\u6709\u4e00\u4e2a\u5f88\u597d\u7684\u89e3\u91ca\uff1a\u201cBase64\u662f\u7f51\u7edc\u4e0a\u6700\u5e38\u89c1\u7684\u7528\u4e8e\u4f20\u8f938Bit<a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=%E5%AD%97%E8%8A%82%E7%A0%81&amp;spm=1001.2101.3001.7020\" target=\"_blank\">\u5b57\u8282\u7801<\/a>\u7684\u7f16\u7801\u65b9\u5f0f\u4e4b\u4e00\uff0cBase64\u5c31\u662f\u4e00\u79cd\u57fa\u4e8e64\u4e2a\u53ef\u6253\u5370\u5b57\u7b26\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u65b9\u6cd5\u201d\u3002<\/p>\n\n\n\n<p>\u4ec0\u4e48\u662f\u201c\u53ef\u6253\u5370\u5b57\u7b26\u201d\u5462\uff1f\u4e3a\u4ec0\u4e48\u8981\u7528\u5b83\u6765\u4f20\u8f938Bit\u5b57\u8282\u7801\u5462\uff1f\u5728\u56de\u7b54\u8fd9\u4e24\u4e2a\u95ee\u9898\u4e4b\u524d\u6211\u4eec\u6709\u5fc5\u8981\u6765\u601d\u8003\u4e00\u4e0b\u4ec0\u4e48\u60c5\u51b5\u4e0b\u9700\u8981\u4f7f\u7528\u5230Base64\uff1fBase64\u4e00\u822c\u7528\u4e8e\u5728HTTP\u534f\u8bae\u4e0b\u4f20\u8f93<a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=%E4%BA%8C%E8%BF%9B%E5%88%B6&amp;spm=1001.2101.3001.7020\" target=\"_blank\">\u4e8c\u8fdb\u5236<\/a>\u6570\u636e\uff0c\u7531\u4e8eHTTP\u534f\u8bae\u662f\u6587\u672c\u534f\u8bae\uff0c\u6240\u4ee5\u5728HTTP\u534f\u8bae\u4e0b\u4f20\u8f93\u4e8c\u8fdb\u5236\u6570\u636e\u9700\u8981\u5c06\u4e8c\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u4e3a\u5b57\u7b26\u6570\u636e\u3002\u7136\u800c\u76f4\u63a5\u8f6c\u6362\u662f\u4e0d\u884c\u7684\u3002\u56e0\u4e3a\u7f51\u7edc\u4f20\u8f93\u53ea\u80fd\u4f20\u8f93\u53ef\u6253\u5370\u5b57\u7b26\u3002\u4ec0\u4e48\u662f\u53ef\u6253\u5370\u5b57\u7b26\uff1f\u5728ASCII\u7801\u4e2d\u89c4\u5b9a\uff0c0~31\u3001127\u8fd933\u4e2a\u5b57\u7b26\u5c5e\u4e8e\u63a7\u5236\u5b57\u7b26\uff0c32~126\u8fd995\u4e2a\u5b57\u7b26\u5c5e\u4e8e\u53ef\u6253\u5370\u5b57\u7b26\uff0c\u4e5f\u5c31\u662f\u8bf4\u7f51\u7edc\u4f20\u8f93\u53ea\u80fd\u4f20\u8f93\u8fd995\u4e2a\u5b57\u7b26\uff0c\u4e0d\u5728\u8fd9\u4e2a\u8303\u56f4\u5185\u7684\u5b57\u7b26\u65e0\u6cd5\u4f20\u8f93\u3002\u90a3\u4e48\u8be5\u600e\u4e48\u624d\u80fd\u4f20\u8f93\u5176\u4ed6\u5b57\u7b26\u5462\uff1f\u5176\u4e2d\u4e00\u79cd\u65b9\u5f0f\u5c31\u662f\u4f7f\u7528Base64\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u7684\u7f16\u7801\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul><li>\u5c06\u6bcf3\u4e2a\u5b57\u8282\u4f5c\u4e3a\u4e00\u7ec4\uff0c3\u4e2a\u5b57\u8282\u4e00\u517124\u4e2a\u4e8c\u8fdb\u5236\u4f4d<\/li><li>\u5c06\u8fd924\u4e2a\u4e8c\u8fdb\u5236\u4f4d\u5206\u4e3a4\u7ec4\uff0c\u6bcf\u4e2a\u7ec4\u67096\u4e2a\u4e8c\u8fdb\u5236\u4f4d<\/li><li>\u5728\u6bcf\u7ec4\u76846\u4e2a\u4e8c\u8fdb\u5236\u4f4d\u524d\u9762\u8865\u4e24\u4e2a00\uff0c\u6269\u5c55\u621032\u4e2a\u4e8c\u8fdb\u5236\u4f4d\uff0c\u5373\u56db\u4e2a\u5b57\u8282<\/li><li>\u6bcf\u4e2a\u5b57\u8282\u5bf9\u5e94\u7684\u5c06\u662f\u4e00\u4e2a\u5c0f\u4e8e64\u7684\u6570\u5b57\uff0c\u5373\u4e3a\u5b57\u7b26\u7f16\u53f7<\/li><li>\u518d\u6839\u636e\u5b57\u7b26\u7d22\u5f15\u5173\u7cfb\u8868\uff0c\u6bcf\u4e2a\u5b57\u7b26\u7f16\u53f7\u5bf9\u5e94\u4e00\u4e2a\u5b57\u7b26\uff0c\u5c31\u5f97\u5230\u4e86Base64\u7f16\u7801\u5b57\u7b26<\/li><li><\/li><\/ul>\n\n\n\n<p>Base64\uff0c\u5c31\u662f\u4f7f\u752864\u4e2a\u53ef\u6253\u5370\u5b57\u7b26\u6765\u8868\u793a\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u65b9\u6cd5\u3002Base64\u7684\u7d22\u5f15\u4e0e\u5bf9\u5e94\u5b57\u7b26\u7684\u5173\u7cfb\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-1024x768.png\" alt=\"\" class=\"wp-image-6722\" width=\"486\" height=\"365\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-1024x768.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-300x225.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-768x576.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-830x623.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-230x173.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-350x263.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263-480x360.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-263.png 1162w\" sizes=\"(max-width: 486px) 100vw, 486px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u5c06\u7d22\u5f15\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u8bdd\u9700\u8981\u81f3\u591a6\u4e2aBit\u3002\u7136\u800cASCII\u7801\u9700\u89818\u4e2aBit\u6765\u8868\u793a\uff0c\u90a3\u4e48\u600e\u4e48\u4f7f\u75286\u4e2aBit\u6765\u8868\u793a8\u4e2aBit\u7684\u6570\u636e\u5462\uff1f6\u4e2aBit\u5f53\u7136\u4e0d\u80fd\u5b58\u50a88\u4e2aBit\u7684\u6570\u636e\uff0c\u4f46\u662f4*6\u4e2aBit\u53ef\u4ee5\u5b58\u50a83*8\u4e2aBit\u7684\u6570\u636e\u554a\uff01\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264.png\" alt=\"\" class=\"wp-image-6723\" width=\"559\" height=\"156\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264.png 948w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-300x84.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-768x215.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-830x233.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-230x65.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-350x98.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-264-480x135.png 480w\" sizes=\"(max-width: 559px) 100vw, 559px\" \/><\/figure><\/div>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\u201cSon\u201d\u901a\u8fc7Base64\u7f16\u7801\u8f6c\u6362\u6210\u4e86\u201cU29u\u201d\u3002\u8fd9\u662f\u521a\u521a\u597d\u7684\u60c5\u51b5\uff0c3\u4e2aASCII\u5b57\u7b26\u521a\u597d\u8f6c\u6362\u6210\u5bf9\u5e94\u76844\u4e2aBase64\u5b57\u7b26\u3002\u4f46\u662f\uff0c\u5f53\u9700\u8981\u8f6c\u6362\u7684\u5b57\u7b26\u6570\u4e0d\u662f3\u7684\u500d\u6570\u7684\u60c5\u51b5\u4e0b\u8be5\u600e\u4e48\u529e\u5462\uff1fBase64\u89c4\u5b9a\uff0c\u5f53\u9700\u8981\u8f6c\u6362\u7684\u5b57\u7b26\u4e0d\u662f3\u7684\u500d\u6570\u65f6\uff0c\u4e00\u5f8b\u91c7\u7528\u88650\u7684\u65b9\u5f0f\u51d1\u8db33\u7684\u500d\u6570\uff0c\u5177\u4f53\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265.png\" alt=\"\" class=\"wp-image-6724\" width=\"541\" height=\"156\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265.png 950w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-300x87.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-768x222.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-830x239.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-230x66.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-350x101.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-265-480x138.png 480w\" sizes=\"(max-width: 541px) 100vw, 541px\" \/><\/figure><\/div>\n\n\n\n<p>\u6bcf6\u4e2aBit\u4e3a\u4e00\u7ec4\uff0c\u7b2c\u4e00\u7ec4\u8f6c\u6362\u540e\u4e3a\u5b57\u7b26\u201cU\u201d\uff0c\u7b2c\u4e8c\u7ec4\u672b\u5c3e\u88654\u4e2a0\u8f6c\u6362\u540e\u4e3a\u5b57\u7b26\u201cw\u201d\u3002\u5269\u4e0b\u7684\u4f7f\u7528\u201c=\u201d\u66ff\u4ee3\u3002\u5373\u5b57\u7b26\u201cS\u201d\u901a\u8fc7Base64\u7f16\u7801\u540e\u4e3a\u201cUw==\u201d\u3002\u8fd9\u5c31\u662fBase64\u7684\u7f16\u7801\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-1024x310.png\" alt=\"\" class=\"wp-image-6726\" width=\"543\" height=\"164\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-1024x310.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-300x91.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-768x233.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-830x251.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-230x70.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-350x106.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267-480x145.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-267.png 1116w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e0a\u56fe\u4e2d\u7684\u5b57\u7b26\u4e32 <code>'you'<\/code>\uff0c\u7ecf\u8fc7\u8f6c\u6362\u540e\uff0c\u5f97\u5230\u7684\u7f16\u7801\u4e3a\uff1a <code>'eW91'<\/code>\u3002<\/p>\n\n\n\n<p><strong>\u4f53\u79ef\u589e\u5927<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5f533\u4e2a\u5b57\u7b26\u8fdb\u884cBase64\u8f6c\u6362\u7f16\u7801\u540e\uff0c\u6700\u540e\u53d8\u6210\u4e864\u4e2a\u5b57\u7b26\u3002\u56e0\u4e3a\u6bcf\u4e2a6\u6bd4\u7279\u4f4d\uff0c\u90fd\u8865\u4e862\u4e2a0\uff0c\u53d8\u62108\u6bd4\u7279\u4f4d\uff0c\u5bf9\u5e941\u5b57\u8282\u3002\u8fd9\u91cc\u6b63\u597d\u591a\u4e86\u4e09\u5206\u4e4b\u4e00\uff0c\u6240\u4ee5\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c<strong>Base64\u7f16\u7801\u7684\u6570\u636e\u4f53\u79ef\u901a\u5e38\u6bd4\u539f\u6570\u636e\u7684\u4f53\u79ef\u5927\u4e09\u5206\u4e4b\u4e00<\/strong>\u3002<br>\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u5728\u524d\u9762\u8bb2\u4f7f\u7528Base64\u7f16\u7801\u4f18\u5316\u56fe\u7247\u65f6\uff0c\u9700\u8981\u5f3a\u8c03\u662f\u5c0f\u56fe\u6807\uff0c\u5982\u679c\u56fe\u7247\u90fd\u4f7f\u7528\u8be5\u65b9\u5f0f\uff0c\u5219\u9759\u6001\u6587\u4ef6\u4f1a\u589e\u5927\u5f88\u591a\uff0c\u5e76\u4e0d\u5408\u9002\u3002<\/p>\n\n\n\n<p><strong>= \u7b49\u53f7<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>3\u4e2a\u82f1\u6587\u5b57\u7b26\uff0c\u6b63\u597d\u80fd\u8f6c\u62104\u4e2aBase64\u5b57\u7b26\u3002\u90a3\u5982\u679c\u5b57\u7b26\u957f\u5ea6\u4e0d\u662f3\u7684\u500d\u6570\uff0c\u90a3\u5e94\u8be5\u4f7f\u7528\u4ec0\u4e48\u6837\u7684\u89c4\u5219\u5462\uff1f<br>\u5176\u5b9e\u4e5f\u7b80\u5355\uff0c\u6211\u4eec\u5728\u5b9e\u9645\u4f7f\u7528Base\u7f16\u7801\u65f6\uff0c\u5e38\u4f1a\u53d1\u73b0\u6709\u7b2c65\u4e2a\u5b57\u7b26\u7684\u5b58\u5728\uff0c\u90a3\u5c31\u662f <code>'='<\/code> \u7b26\u53f7\uff0c\u8fd9\u4e2a\u7b49\u4e8e\u53f7\u5c31\u662f\u9488\u5bf9\u8fd9\u79cd\u7279\u6b8a\u60c5\u51b5\u7684\u4e00\u79cd\u5904\u7406\u65b9\u5f0f\u3002<br>\u5bf9\u4e8e\u4e0d\u8db33\u4e2a\u5b57\u8282\u7684\u5730\u65b9\uff0c\u5b9e\u9645\u90fd\u4f1a\u5728\u540e\u9762\u88650\uff0c\u76f4\u5230\u670924\u4e2a\u4e8c\u8fdb\u5236\u4f4d\u4e3a\u6b62\u3002<br>\u4f46\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8ba1\u7b97\u5b57\u8282\u6570\u65f6\uff0c\u4f1a\u76f4\u63a5\u4f7f\u7528\u603b\u957f\u5ea6\u9664\u4ee53\uff0c\u5982\u679c\u4f59\u6570\u4e3a1\u5219\u4f1a\u76f4\u63a5\u5728\u6700\u540e\u8865\u4e00\u4e2a<code>=<\/code>\uff0c\u5982\u679c\u4f59\u6570\u4e3a2\u5219\u8865\u4e24\u4e2a<code>=<\/code>\u3002<br>\u56e0\u6b64\uff0c\u8f6c\u7801\u540e\u7684\u5b57\u7b26\u4e32\u9700\u8981\u8865\u7684\u540e\u7f00\u7b49\u53f7\uff0c\u8981\u4e48\u662f1\u4e2a\uff0c\u8981\u4e48\u662f2\u4e2a\uff0c\u5177\u4f53\u7684\u53ef\u4ee5\u89c1\u4e0b\u56fe\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-1024x507.png\" alt=\"\" class=\"wp-image-6729\" width=\"520\" height=\"257\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-1024x507.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-300x149.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-768x381.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-830x411.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-230x114.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-350x173.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268-480x238.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/07\/\u56fe\u7247-268.png 1118w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><\/figure><\/div>\n\n\n\n<p>\u56fe\u4e2d\u7b2c\u4e8c\u4e2a\uff0c\u4f7f\u7528\u7684\u662f\u5355\u72ec\u7684\u5b57\u7b26 <code>'d'<\/code>\uff0c\u662f\u4e3a\u4e86\u533a\u5206\u7d22\u5f15\u5b57\u7b26\u8868\u91cc\u7684\u7d22\u5f150\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u5f97\u5230\u7f16\u7801\u4e2d\uff0c\u4f1a\u5b58\u5728\u4e00\u4e2a\u7d22\u5f150\u5bf9\u5e94\u7684A\u5b57\u7b26\uff0c\u800c<code>'='<\/code>\u662f\u76f4\u63a5\u8865\u4e0a2\u4e2a\u3002<\/p>\n\n\n\n<p><strong>\u975eASCII\u7801\u5b57\u7b26<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u7531\u4e8e <code>Base64<\/code> \u4ec5\u53ef\u5bf9 <code>ASCII<\/code> \u5b57\u7b26\u8fdb\u884c\u7f16\u7801\uff0c\u5982\u679c\u662f\u4e2d\u6587\u5b57\u7b26\u7b49\u975eASCII\u7801\uff0c\u5c31\u9700\u8981\u5148\u5c06\u4e2d\u6587\u5b57\u7b26\u8f6c\u6362\u4e3aASCII\u5b57\u7b26\u540e\uff0c\u518d\u8fdb\u884c\u7f16\u7801\u624d\u884c\u3002<\/p>\n\n\n\n<p><strong>\u7f16\u89e3\u7801\u65b9\u6cd5<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>btoa \u548c atob<\/strong><\/p>\n\n\n\n<p>w3c\u6d4f\u89c8\u5668\u5185\u7f6e\u4e86<code>window.btoa()<\/code> \u548c <code>window.atob()<\/code> \u6765\u5b8c\u6210\u4e8c\u8fdb\u5236\u6570\u636e\u6216\u8005ASCII\u5b57\u7b26\u5230base64\u7684\u8f6c\u6362\uff08\u6ce8\u610f\uff1a\u8be5\u65b9\u6cd5\u53ea\u80fd\u7528\u4e8eASCII\u7801\u6210Base64\uff0c\u4e0d\u9002\u7528\u4e2d\u6587\u7b49\uff09<\/p>\n\n\n\n<p>JavaScript\u63d0\u4f9b\u4e86\u4e24\u4e2a\u539f\u751f\u65b9\u6cd5\uff0c\u7528\u6765\u5904\u7406Base64\u7f16\u7801\uff1a<code>btoa()<\/code> \u548c <code>atob()<\/code>\u3002<\/p>\n\n\n\n<ul><li><code>btoa()<\/code>\uff1a \u5c06\u5b57\u7b26\u4e32\u6216\u4e8c\u8fdb\u5236\u503c\u8f6c\u6362\u6210Base64\u7f16\u7801\u5b57\u7b26\u4e32\u3002<br>\u6ce8\u610f\uff1abtoa\u65b9\u6cd5\u53ea\u80fd\u76f4\u63a5\u5904\u7406ASCII\u7801\u7684\u5b57\u7b26\uff0c\u5bf9\u4e8e\u975eASCII\u7801\u7684\u5b57\u7b26\uff0c\u5219\u4f1a\u62a5\u9519\u3002<\/li><li><code>atob()<\/code>\uff1a \u5bf9base64 \u7f16\u7801\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u89e3\u7801\u3002<br>\u6ce8\u610f\uff1aatob\u65b9\u6cd5\u5982\u679c\u4f20\u5165\u5b57\u7b26\u4e32\u53c2\u6570\u4e0d\u662f\u6709\u6548\u7684Base64\u7f16\u7801(\u5982\u975eASCII\u7801\u5b57\u7b26)\uff0c\u6216\u8005\u5176\u957f\u5ea6\u4e0d\u662f4\u7684\u500d\u6570\uff0c\u4f1a\u62a5\u9519\u3002<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">btoa('you') \/\/ 'eW91'atob('eW91') \/\/ 'you'\n\nbtoa('\u4e2d') \/\/ Uncaught DOMException: The string to be encoded contains characters outside of the Latin1 range.atob('y') \/\/ Uncaught DOMException: The string to be decoded is not correctly encoded.<\/pre>\n\n\n\n<p><strong>\u5904\u7406\u4e2d\u6587\u5b57\u7b26<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u7531\u4e8ebtoa\u3001atob \u4ec5\u652f\u6301\u5bf9ASCII\u5b57\u7b26\u7f16\u7801\uff0c\u4e5f\u5c31\u662f\u5355\u5b57\u8282\u5b57\u7b26\uff0c\u800c\u6211\u4eec\u5e73\u65f6\u7684\u4e2d\u6587\u90fd\u662f 2-4 \u5b57\u8282\u7684\u5b57\u7b26\u3002<br>\u56e0\u6b64\uff0c\u53ef\u4ee5\u5148\u5c06\u4e2d\u6587\u5b57\u7b26\u8f6c\u4e3a <code>utf-8<\/code> \u7684\u7f16\u7801\uff0c\u5c06utf-8\u7f16\u7801\u5f53\u505a\u5b57\u7b26\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5bf9\u591a\u4e2a\u5355\u5b57\u8282\u5b57\u7b26\u8fdb\u884c\u7f16\u7801\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e2d\u6587\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e24\u4e2a\u65b9\u6cd5\uff1a <code>encodeURIComponent()<\/code> \u548c <code>decodeURIComponent()<\/code>\u3002<\/p>\n\n\n\n<ul><li>encodeURIComponent()\uff1a\u5c06\u975eACSII\u7801\u7684\u5b57\u7b26\u8fdb\u884cutf-8\u7f16\u7801<\/li><li>decodeURIComponent()\uff1a\u89e3\u7801\u4f7f\u7528<\/li><\/ul>\n\n\n\n<p>\u5982\u4e0b\uff0c\u7f16\u89e3\u7801\u4e2d\u6587\u7684\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">window.btoa(encodeURIComponent('\u4e2d\u56fd'))\/\/ 'JUU0JUI4JUFEJUU1JTlCJUJE'decodeURIComponent(window.atob('JUU0JUI4JUFEJUU1JTlCJUJE'))\/\/ '\u4e2d\u56fd'<\/pre>\n\n\n\n<p><strong>\u4f7f\u7528\u573a\u666f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<ul><li>html\u4e2d\u7684\u56fe\u7247\u7528base64\u8868\u793a<\/li><\/ul>\n\n\n\n<p>\u7f51\u9875\u4e2d\u80fd\u770b\u5230\u67d0\u4e9b\u6837\u5f0f\u4e2d\u7684\u56fe\u7247\u4e0d\u662f\u4e00\u4e2a\u8d44\u6e90\u5730\u5740\uff0c\u800c\u662fbase64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\uff0c\u8fd9\u4e48\u505a\u6709\u4ec0\u4e48\u597d\u5904\u5462\uff1f 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class=\"wp-block-separator\"\/>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4e86\u89e3\u4e0b\u524d\u7aef\u5f00\u53d1\u4e2d\u5e38\u89c1\u7684\u5bf9Base64\u7f16\u7801\u7684\u4e00\u4e9b\u4f7f\u7528\u573a\u666f\u3002<br>Base64\u5728\u524d\u7aef\u65b9\u9762\u7684\u5e94\u7528\uff0c\u591a\u6570\u90fd\u662f\u9488\u5bf9\u56fe\u7247\u7684\u5904\u7406\uff0c\u4e00\u822c\u90fd\u662f\u57fa\u4e8eDataURL\u7684\u65b9\u5f0f\u6765\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>Data URL \u7531 <code>data:\u524d\u7f00<\/code>\u3001<code>MIME\u7c7b\u578b\uff08\u8868\u660e\u6570\u636e\u7c7b\u578b\uff09<\/code>\u3001<code>base64\u6807\u5fd7\u4f4d<\/code>\uff08\u5982\u679c\u662f\u6587\u672c\uff0c\u5219\u53ef\u9009\uff09\u4ee5\u53ca <code>\u6570\u636e\u672c\u8eab<\/code> \u56db\u90e8\u5206\u7ec4\u6210\u3002<br>\u5177\u4f53\u7684\u683c\u5f0f\uff1a<code>data:[&lt;mime type&gt;][;base64],&lt;data&gt;<\/code>\u3002<br>\u8fd9\u91cc\u7684\u7b2c\u56db\u90e8\u5206 <code>&lt;data&gt;<\/code> 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