{"id":170106,"date":"2024-05-08T17:00:29","date_gmt":"2024-05-08T09:00:29","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/170106.html"},"modified":"2024-05-08T17:00:33","modified_gmt":"2024-05-08T09:00:33","slug":"javascript-%e4%bb%a3%e7%a0%81%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e8%bf%9b%e5%88%b6%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/170106.html","title":{"rendered":"JavaScript \u4ee3\u7801\u5982\u4f55\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362"},"content":{"rendered":"

\"JavaScript<\/p>\n

\u5728JavaScript\u4e2d\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\uff0c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u51e0\u4e2a\u6838\u5fc3\u7684\u65b9\u6cd5\uff1aparseInt()<\/code>\u3001toString()<\/code><\/strong>\u3001\u4ee5\u53ca\u66f4\u5e95\u5c42\u7684\u7b97\u6cd5\u5b9e\u73b0\u3002parseInt()<\/code><\/strong> \u65b9\u6cd5\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u6307\u5b9a\u8fdb\u5236\u7684\u6574\u6570\uff0c\u800c toString()<\/code><\/strong> \u65b9\u6cd5\u5219\u662f\u5c06\u4e00\u4e2a\u6574\u6570\u8f6c\u6362\u4e3a\u6307\u5b9a\u8fdb\u5236\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u5728\u8fdb\u884c\u8fdb\u5236\u8f6c\u6362\u65f6\u975e\u5e38\u7b80\u5355\u9ad8\u6548\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528parseInt()<\/code>\u8fdb\u884c\u8fdb\u5236\u8f6c\u6362<\/strong><\/h3>\n<\/p>\n

\u6211\u4eec\u5148\u6765\u63a2\u8ba8parseInt()<\/code>\u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u9700\u8981\u8f6c\u6362\u7684\u5b57\u7b26\u4e32\uff0c\u800c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8be5\u5b57\u7b26\u4e32\u7684\u5f53\u524d\u8fdb\u5236\u57fa\u6570\u3002\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u4ee5\u5341\u8fdb\u5236\u8868\u793a\u7684\u6574\u6570\u3002\u57fa\u4e8e\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4efb\u610f\u8fdb\u5236\u5230\u5341\u8fdb\u5236\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\uff0c\u60f3\u8f6c\u6362\u6210\u5341\u8fdb\u5236\u6574\u6570\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n

let binaryString = "1010";<\/p>\n
let decimalNumber = parseInt(binaryString, 2);<\/p>\n
console.log(decimalNumber); \/\/ \u8f93\u51fa 10<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7c7b\u4f3c\u5730\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u7684\u5b57\u7b26\u4e32\uff0c\u60f3\u8f6c\u6362\u6210\u5341\u8fdb\u5236\uff0c\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
let hexString = "1F";<\/p>\n
let decimalNumber = parseInt(hexString, 16);<\/p>\n
console.log(decimalNumber); \/\/ \u8f93\u51fa 31<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528toString()<\/code>\u8fdb\u884c\u8fdb\u5236\u8f6c\u6362<\/strong><\/h3>\n<\/p>\n
\u5728\u63a2\u8ba8toString()<\/code>\u65b9\u6cd5\u3002\u8fd9\u4e2a\u65b9\u6cd5\u662fNumber\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u6574\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd9\u4e2a\u6574\u6570\u8868\u793a\u4f60\u60f3\u8981\u8f6c\u6362\u5230\u7684\u76ee\u6807\u8fdb\u5236\u57fa\u6570\u3002\u4f7f\u7528toString()<\/code>\u975e\u5e38\u9002\u5408\u4ece\u5341\u8fdb\u5236\u8f6c\u6362\u5230\u5176\u5b83\u4efb\u610f\u8fdb\u5236\u3002<\/p>\n<\/p>\n
\u4f8b\u5982\uff0c\u5c06\u5341\u8fdb\u5236\u6574\u6570\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u7684\u4f8b\u5b50\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
let decimalNumber = 10;<\/p>\n
let binaryString = decimalNumber.toString(2);<\/p>\n
console.log(binaryString); \/\/ \u8f93\u51fa "1010"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u60f3\u8981\u5c06\u540c\u4e00\u4e2a\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u6210\u5341\u516d\u8fdb\u5236\u7684\u5b57\u7b26\u4e32\uff0c\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
let hexString = decimalNumber.toString(16);<\/p>\n
console.log(hexString); \/\/ \u8f93\u51fa "a"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5e95\u5c42\u7b97\u6cd5\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362<\/strong><\/h3>\n<\/p>\n
\u9664\u4e86\u4f7f\u7528\u5185\u5efa\u65b9\u6cd5\uff0c\u7406\u89e3\u548c\u5b9e\u73b0\u57fa\u672c\u7684\u8fdb\u5236\u8f6c\u6362\u7b97\u6cd5\u4e5f\u662f\u5f88\u6709\u76ca\u5904\u7684\u3002\u8fd9\u90e8\u5206\u4e3b\u8981\u6d89\u53ca\u5230\u6570\u5b66\u539f\u7406\uff0c\u6bd4\u5982\u4f59\u6570\u7684\u6982\u5ff5\u548c\u9012\u5f52\u5904\u7406\u3002<\/p>\n<\/p>\n
\u4ece\u5341\u8fdb\u5236\u5230\u5176\u4ed6\u8fdb\u5236<\/strong><\/h4>\n<\/p>\n
\u8f6c\u6362\u4e00\u4e2a\u5341\u8fdb\u5236\u6570\u5230\u5176\u4ed6\u8fdb\u5236\uff0c\u53ef\u4ee5\u4f7f\u7528\u9664\u57fa\u53d6\u4f59\u6cd5\uff0c\u7136\u540e\u5c06\u5f97\u5230\u7684\u4f59\u6570\u9006\u5e8f\u6392\u5217\u3002\u8fd9\u4e2a\u65b9\u6cd5\u4e3b\u8981\u662f\u4e0d\u65ad\u5730\u5c06\u5341\u8fdb\u5236\u6570\u9664\u4ee5\u76ee\u6807\u8fdb\u5236\u7684\u57fa\u6570\uff0c\u5e76\u5c06\u4f59\u6570\u8bb0\u5f55\u4e0b\u6765\uff0c\u76f4\u81f3\u5546\u4e3a\u96f6\u3002<\/p>\n<\/p>\n
\u4ece\u5176\u4ed6\u8fdb\u5236\u5230\u5341\u8fdb\u5236<\/strong><\/h4>\n<\/p>\n
\u53cd\u5411\u64cd\u4f5c\uff0c\u5219\u9700\u8981\u5c06\u6bcf\u4e00\u4f4d\u6570\u4e58\u4ee5\u5176\u4f4d\u6743\uff0c\u4f4d\u6743\u662f\u57fa\u6570\u7684\u5e42\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u7d2f\u52a0\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4ece\u4f4e\u4f4d\u5230\u9ad8\u4f4d\u6216\u8005\u4ece\u5b57\u7b26\u4e32\u6700\u540e\u4e00\u4f4d\u5411\u524d\u904d\u5386\u8fdb\u884c\u3002<\/p>\n<\/p>\n
\u56db\u3001JavaScript\u73af\u5883\u4e0b\u7684\u8fdb\u5236\u8f6c\u6362\u6848\u4f8b<\/strong><\/h3>\n<\/p>\n
\u5b9e\u9645\u4e0a\uff0c\u8fdb\u5236\u8f6c\u6362\u5728\u5f00\u53d1\u4e2d\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u7f51\u7edc\u901a\u4fe1\u548c\u6570\u636e\u5b58\u50a8\u65f6\u3002\u638c\u63e1JavaScript\u4e2d\u7684\u8fdb\u5236\u8f6c\u6362\u4e0d\u4ec5\u80fd\u591f\u8ba9\u6211\u4eec\u66f4\u597d\u5730\u5904\u7406\u8fd9\u7c7b\u95ee\u9898\uff0c\u540c\u65f6\u4e5f\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u66f4\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u5982\u4f55\u5b58\u50a8\u548c\u5904\u7406\u6570\u636e\u7684\u89c6\u89d2\u3002<\/p>\n<\/p>\n
\u5b9e\u4f8b\u5206\u6790<\/strong><\/h4>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u9700\u8981\u5904\u7406\u4e00\u79cd\u573a\u666f\uff0c\u5373\u5c06\u7528\u6237\u8f93\u5165\u7684\u5341\u516d\u8fdb\u5236\u989c\u8272\u4ee3\u7801\u8f6c\u6362\u4e3aRGB\u8868\u793a\u6cd5\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u5c06\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u5206\u5272\u4e3aRGB\u4e09\u4e2a\u90e8\u5206\uff0c\u5206\u522b\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\uff0c\u7136\u540e\u7ec4\u5408\u6210RGB\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
\u53c8\u6216\u8005\uff0c\u5728\u4e00\u4e2a\u6570\u636e\u901a\u4fe1\u7684\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5c06\u6536\u5230\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u4e3a\u66f4\u6613\u4e8e\u5904\u7406\u7684\u5341\u8fdb\u5236\u683c\u5f0f\uff0c\u4ee5\u65b9\u4fbf\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u548c\u5c55\u793a\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u638c\u63e1parseInt()<\/code>\u548ctoString()<\/code>\uff0c\u4ee5\u53ca\u76f8\u5173\u7684\u5e95\u5c42\u7b97\u6cd5\u539f\u7406\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u8fd9\u4e9b\u573a\u666f\u4e0b\u7075\u6d3b\u5e94\u5bf9\uff0c\u6709\u6548\u5730\u5b9e\u73b0\u9700\u6c42\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/strong><\/h3>\n<\/p>\n
JavaScript\u4e2d\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\u662f\u4e00\u9879\u57fa\u672c\u800c\u91cd\u8981\u7684\u6280\u80fd\u3002\u901a\u8fc7\u5229\u7528parseInt()<\/code>\u548ctoString()<\/code>\u4e24\u4e2a\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u5728\u4e0d\u540c\u8fdb\u5236\u4e4b\u95f4\u8fdb\u884c\u8f6c\u6362\u3002\u540c\u65f6\uff0c\u4e86\u89e3\u8fd9\u4e9b\u8f6c\u6362\u80cc\u540e\u7684\u7b97\u6cd5\u539f\u7406\uff0c\u5bf9\u4e8e\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u79d1\u5b66\u7684\u57fa\u672c\u6982\u5ff5\u540c\u6837\u91cd\u8981\u3002\u65e0\u8bba\u662f\u5728\u6570\u636e\u5904\u7406\u3001\u7f51\u7edc\u901a\u4fe1\u8fd8\u662f\u7cfb\u7edf\u5f00\u53d1\u4e2d\uff0c\u8fdb\u5236\u8f6c\u6362\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u4e4b\u4e00\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5982\u4f55\u5728JavaScript\u4e2d\u8fdb\u884c\u5341\u8fdb\u5236\u5230\u4e8c\u8fdb\u5236\u7684\u8f6c\u6362\uff1f<\/strong><\/p>\n
JavaScript\u63d0\u4f9b\u4e86\u5185\u7f6e\u7684\u65b9\u6cd5toString()<\/code>\u6765\u5b9e\u73b0\u5341\u8fdb\u5236\u5230\u4e8c\u8fdb\u5236\u7684\u8f6c\u6362\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528toString()<\/code>\u65b9\u6cd5\uff0c\u5e76\u5c06\u53c2\u6570\u8bbe\u7f6e\u4e3a2\uff0c\u4ee5\u5c06\u5341\u8fdb\u5236\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n
let decimalNumber = 10;\nlet binaryNumber = decimalNumber.toString(2);\nconsole.log(binaryNumber); \/\/ \u8f93\u51fa 1010\n<\/code><\/pre>\n
\u5982\u4f55\u5728JavaScript\u4e2d\u8fdb\u884c\u4e8c\u8fdb\u5236\u5230\u5341\u8fdb\u5236\u7684\u8f6c\u6362\uff1f<\/strong><\/p>\n
\u8981\u5728JavaScript\u4e2d\u8fdb\u884c\u4e8c\u8fdb\u5236\u5230\u5341\u8fdb\u5236\u7684\u8f6c\u6362\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528parseInt()<\/code>\u51fd\u6570\uff0c\u5e76\u5c06\u4e8c\u8fdb\u5236\u6570\u503c\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\uff0c\u4ee5\u53ca2\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\uff0c\u4ee5\u6307\u5b9a\u5c06\u8981\u8fdb\u884c\u7684\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5230\u5341\u8fdb\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n
let binaryNumber = "1010";\nlet decimalNumber = parseInt(binaryNumber, 2);\nconsole.log(decimalNumber); \/\/ \u8f93\u51fa 10\n<\/code><\/pre>\n
\u5982\u4f55\u5728JavaScript\u4e2d\u8fdb\u884c\u5341\u8fdb\u5236\u5230\u5341\u516d\u8fdb\u5236\u7684\u8f6c\u6362\uff1f<\/strong><\/p>\n
\u8981\u5728JavaScript\u4e2d\u5c06\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528toString()<\/code>\u65b9\u6cd5\uff0c\u5e76\u5c06\u53c2\u6570\u8bbe\u7f6e\u4e3a16\uff0c\u4ee5\u5c06\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n
let decimalNumber = 255;\nlet hexadecimalNumber = decimalNumber.toString(16);\nconsole.log(hexadecimalNumber); \/\/ \u8f93\u51fa ff\n<\/code><\/pre>\n
\u53e6\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528Number<\/code>\u5bf9\u8c61\u7684toString()<\/code>\u65b9\u6cd5\uff0c\u5e76\u5c06\u53c2\u6570\u8bbe\u7f6e\u4e3a16\u6765\u5b9e\u73b0\u76f8\u540c\u7684\u7ed3\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n
let decimalNumber = 255;\nlet hexadecimalNumber = new Number(decimalNumber).toString(16);\nconsole.log(hexadecimalNumber); \/\/ \u8f93\u51fa ff\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u5728JavaScript\u4e2d\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\uff0c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u51e0\u4e2a\u6838\u5fc3\u7684\u65b9\u6cd5\uff1aparseInt()\u3001toString()\u3001\u4ee5 […]","protected":false},"author":3,"featured_media":170111,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/170106"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=170106"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/170106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/170111"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=170106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=170106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=170106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}