HTML常用编码转换

var encoding = (function () {    function ToASCII(str) {        return this.ToNormal(str).replace(/[^\u0000-\u00FF]/g, function () { return escape(arguments[0]).replace(/(?:%u)([0-9a-f]{4})/gi, "\$1;") });    }    function ToUnicode(str) {        return this.ToNormal(str).replace(/[^\u0000-\u00FF]/g, function () { return escape(arguments[0]).replace(/(?:%u)([0-9a-f]{4})/gi, "\\u$1") });    }    function ToNormal(str) {        return str.replace(/(?:)([0-9a-f]{4});|(?:\\u)([0-9a-f]{4})/gi, function () { return unescape("%u" + (arguments[1] || arguments[2])); });    }    function ToCss(str) {        return this.ToNormal(str).replace(/[^\u0000-\u00FF]/g, function () { return escape(arguments[0]).replace(/(?:%u)([0-9a-f]{4})/gi, "\\$1") });    }    return {        ToASCII: ToASCII,        ToUnicode: ToUnicode,        ToNormal: ToNormal,        ToCss: ToCss    }; })(); console.log(encoding.ToASCII("宋体")); console.log(encoding.ToUnicode("宋体")); console.log(encoding.ToNormal("宋\\u4F53")); console.log(encoding.ToUnicode("宋体")); console.log(encoding.ToCss('Arial , Helvetica ,"宋体", sans-serif'));