调用的页面里引用json2.js即可解决问题(推荐方法)。
即:<script type="text/JavaScript" src="js/json2.js"></script>
json2.js如下：
| // json2.js | |
| // 2017-06-12 | |
| // Public Domain. | |
| // NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK. | |
| // USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO | |
| // NOT CONTROL. | |
| // This file creates a global JSON object containing two methods: stringify | |
| // and parse. This file provides the ES5 JSON capability to ES3 systems. | |
| // If a project might run on IE8 or earlier, then this file should be included. | |
| // This file does nothing on ES5 systems. | |
| // JSON.stringify(value, replacer, space) | |
| // value any JavaScript value, usually an object or array. | |
| // replacer an optional parameter that determines how object | |
| // values are stringified for objects. It can be a | |
| // function or an array of strings. | |
| // space an optional parameter that specifies the indentation | |
| // of nested structures. If it is omitted, the text will | |
| // be packed without extra whitespace. If it is a number, | |
| // it will specify the number of spaces to indent at each | |
| // level. If it is a string (such as "\t" or " "), | |
| // it contains the characters used to indent at each level. | |
| // This method produces a JSON text from a JavaScript value. | |
| // When an object value is found, if the object contains a toJSON | |
| // method, its toJSON method will be called and the result will be | |
| // stringified. A toJSON method does not serialize: it returns the | |
| // value represented by the name/value pair that should be serialized, | |
| // or undefined if nothing should be serialized. The toJSON method | |
| // will be passed the key associated with the value, and this will be | |
| // bound to the value. | |
| // For example, this would serialize Dates as ISO strings. | |
| // Date.prototype.toJSON = function (key) { | |
| // function f(n) { | |
| // // Format integers to have at least two digits. | |
| // return (n < 10) | |
| // ? "0" + n | |
| // : n; | |
| // } | |
| // return this.getUTCFullYear() + "-" + | |
| // f(this.getUTCMonth() + 1) + "-" + | |
| // f(this.getUTCDate()) + "T" + | |
| // f(this.getUTCHours()) + ":" + | |
| // f(this.getUTCMinutes()) + ":" + | |
| // f(this.getUTCSeconds()) + "Z"; | |
| // }; | |
| // You can provide an optional replacer method. It will be passed the | |
| // key and value of each member, with this bound to the containing | |
| // object. The value that is returned from your method will be | |
| // serialized. If your method returns undefined, then the member will | |
| // be excluded from the serialization. | |
| // If the replacer parameter is an array of strings, then it will be | |
| // used to select the members to be serialized. It filters the results | |
| // such that only members with keys listed in the replacer array are | |
| // stringified. | |
| // Values that do not have JSON representations, such as undefined or | |
| // functions, will not be serialized. Such values in objects will be | |
| // dropped; in arrays they will be replaced with null. You can use | |
| // a replacer function to replace those with JSON values. | |
| // JSON.stringify(undefined) returns undefined. | |
| // The optional space parameter produces a stringification of the | |
| // value that is filled with line breaks and indentation to make it | |
| // easier to read. | |
| // If the space parameter is a non-empty string, then that string will | |
| // be used for indentation. If the space parameter is a number, then | |
| // the indentation will be that many spaces. | |
| // Example: | |
| // text = JSON.stringify(["e", {pluribus: "unum"}]); | |
| // // text is ‘["e",{"pluribus":"unum"}]‘ | |
| // text = JSON.stringify(["e", {pluribus: "unum"}], null, "\t"); | |
| // // text is ‘[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]‘ | |
| // text = JSON.stringify([new Date()], function (key, value) { | |
| // return this[key] instanceof Date | |
| // ? "Date(" + this[key] + ")" | |
| // : value; | |
| // }); | |
| // // text is ‘["Date(---current time---)"]‘ | |
| // JSON.parse(text, reviver) | |
| // This method parses a JSON text to produce an object or array. | |
| // It can throw a SyntaxError exception. | |
| // The optional reviver parameter is a function that can filter and | |
| // transform the results. It receives each of the keys and values, | |
| // and its return value is used instead of the original value. | |
| // If it returns what it received, then the structure is not modified. | |
| // If it returns undefined then the member is deleted. | |
| // Example: | |
| // // Parse the text. Values that look like ISO date strings will | |
| // // be converted to Date objects. | |
| // myData = JSON.parse(text, function (key, value) { | |
| // var a; | |
| // if (typeof value === "string") { | |
| // a = | |
| // /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value); | |
| // if (a) { | |
| // return new Date(Date.UTC( | |
| // +a[1], +a[2] - 1, +a[3], +a[4], +a[5], +a[6] | |
| // )); | |
| // } | |
| // return value; | |
| // } | |
| // }); | |
| // myData = JSON.parse( | |
| // "[\"Date(09/09/2001)\"]", | |
| // function (key, value) { | |
| // var d; | |
| // if ( | |
| // typeof value === "string" | |
| // && value.slice(0, 5) === "Date(" | |
| // && value.slice(-1) === ")" | |
| // ) { | |
| // d = new Date(value.slice(5, -1)); | |
| // if (d) { | |
| // return d; | |
| // } | |
| // } | |
| // return value; | |
| // } | |
| // ); | |
| // This is a reference implementation. You are free to copy, modify, or | |
| // redistribute. | |
| /*jslint | |
| eval, for, this | |
| */ | |
| /*property | |
| JSON, apply, call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours, | |
| getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join, | |
| lastIndex, length, parse, prototype, push, replace, slice, stringify, | |
| test, toJSON, toString, valueOf | |
| */ | |
| // Create a JSON object only if one does not already exist. We create the | |
| // methods in a closure to avoid creating global variables. | |
| if (typeof JSON !== "object") { | |
| JSON = {}; | |
| } | |
| (function () { | |
| "use strict"; | |
| var rx_one = /^[\],:{}\s]*$/; | |
| var rx_two = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g; | |
| var rx_three = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g; | |
| var rx_four = /(?:^|:|,)(?:\s*\[)+/g; | |
| var rx_escapable = /[\\"\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; | |
| var rx_dangerous = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; | |
| function f(n) { | |
| // Format integers to have at least two digits. | |
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