// Notes:// - json2.js is not needed if browser supports JSON.stringify and JSON.parse natively// - jQuery is only used to place the results// colon；冒号，pad；填补var formatJson = function(json, options) { ?????var reg = null, ???????formatted = ‘‘, ???????pad = 0, ???????PADDING = ‘ ???‘; // one can also use ‘\t‘ or a different number of spaces ?????// optional settings ?????options = options || {}; ?????// remove newline where ‘{‘ or ‘[‘ follows ‘:‘ ?????options.newlineAfterColonIfBeforeBraceOrBracket = (options.newlineAfterColonIfBeforeBraceOrBracket === true) ? true : false; ?????// use a space after a colon ?????options.spaceAfterColon = (options.spaceAfterColon === false) ? false : true; ???????????// begin formatting... ?????// make sure we start with the JSON as a string ?????if (typeof json !== ‘string‘) { ???????json = JSON.stringify(json); ?????} ?????// parse and stringify in order to remove extra whitespace ?????// json = JSON.stringify(JSON.parse(json));可以除去多余的空格 ?????json = JSON.parse(json); ?????json = JSON.stringify(json); ?????// add newline before and after curly braces ?????reg = /([\{\}])/g; ?????json = json.replace(reg, ‘\r\n$1\r\n‘); ?????// add newline before and after square brackets ?????reg = /([\[\]])/g; ?????json = json.replace(reg, ‘\r\n$1\r\n‘); ???????????// add newline after comma ?????reg = /(\,)/g; ?????json = json.replace(reg, ‘$1\r\n‘); ???????????// remove multiple newlines ?????reg = /(\r\n\r\n)/g; ?????json = json.replace(reg, ‘\r\n‘); ???????????// remove newlines before commas ?????reg = /\r\n\,/g; ?????json = json.replace(reg, ‘,‘); ?????// optional formatting... ?????if (!options.newlineAfterColonIfBeforeBraceOrBracket) { ????????????reg = /\:\r\n\{/g; ???????json = json.replace(reg, ‘:{‘); ???????reg = /\:\r\n\[/g; ???????json = json.replace(reg, ‘:[‘); ?????} ?????if (options.spaceAfterColon) { ?????????????reg = /\:/g; ???????json = json.replace(reg, ‘: ‘); ?????} ?????$.each(json.split(‘\r\n‘), function(index, node) { ???????var i = 0, ?????????indent = 0, ?????????padding = ‘‘; ???????????????if (node.match(/\{$/) || node.match(/\[$/)) { ?????????indent = 1; ???????} else if (node.match(/\}/) || node.match(/\]/)) { ?????????if (pad !== 0) { ???????????pad -= 1; ?????????} ???????} else { ?????????indent = 0; ???????} ?????????????for (i = 0; i < pad; i++) { ?????????padding += PADDING; ???????} ?????????????formatted += padding + node + ‘\r\n‘; ???????pad += indent; ?????}); ???????????return formatted;};var json = {};// display formatted JSON (as JSON object)json = {"a":{"aa":[1,2,{"aaa":"abc","bbb":"defgh","ccc":987},[100,200,300,{"one":1,"two":"ii","three":"Three"},1000]],"bb":"xyz","ccc":777},"b":["qqq","www","eee"],"c":"hello","d":12345};$(‘#formattedJson1‘).text( formatJson(json) );// display formatted JSON (from JSON string)json = ‘{ ??????"a": { ????????"aa": [ ????????????1, ???????????2, ???????????{ ????????????????"aaa": "abc",‘+ ???‘ ????????????????"bbb": "defgh", ????????????????"ccc": 987 ????????????}, ????????????[ ??????100, ??????‘+ ???‘200, ????????????????????300 ????????????, ???????????{ "one": 1, "two" ?: "ii", "three" ?‘+ ???‘: "Three" }, 1000 ]‘+ ???‘ ????????], ????????‘+ ???‘ ???????????"bb": ????????"xyz", ????????"ccc": 777 ????}, ????"b": [ "qqq", "www", ‘+ ???‘"eee" ], ????"c": "hello", ????"d": 12345 }‘;$(‘#formattedJson2‘).text( formatJson(json) );