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// ÏÂÃæ´úÂë¿éʵÏÖÁËstring.parseJSON·½·¨
(function(s){
  // This prototype has been released into the Public Domain, 2007-03-20
  // Original Authorship: Douglas Crockford
  // Originating Website: http://www.JSON.org
  // Originating URL    : http://www.JSON.org/JSON.js
  // ÔöÇ¿StringÔ­ÐÍ.ÎÒÃÇÀûÓÃÕâ¸ö¼´Ê±Ö´ÐеÄÄäÃûº¯Êý±ÜÃâʹÓÃÈ«¾Ö±äÁ¿.
  // mÊÇתÒå×Ö·û±í
  var m ={
    '\b':'\\b',
    '\t':'\\t',
    '\n':'\\n',
    '\f':'\\f',
    '\r':'\\r',
    '"':'\\"',
    '\\':'\\\\'
  };
  s.parseJSON =function(filter){
    // ½âÎö·ÖÈý²½½øÐÐ,µÚÒ»²½,ÎÒÃÇÏÈÓÃÕýÔò±í´ïʽ¹ýÂË·ÇJSON×Ö·û.ÎÒÃÇ»áÌØ±ð¹Ø×¢"()"Óë"new",ÒòΪËüÃÇ
    // »á´¥·¢µ÷ÓÃ,»¹ÓÐ"=",Ëü»áµ¼Ö¸³Öµ´Ó¶ø·¢Éú±ä»¯.ΪÁ˰²È«,ÎÒÃǻᶪÆúËùÓв»ÆÚ´ýµÄ×Ö·û.
    try{
      if(/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u
\n\r\t])+?$/.
        test(this)) {
          // ÔÚµÚ¶þ²½,ÎÒÃÇʹÓÃevalº¯Êý°ÑÎı¾±àÒëµ½Ò»¸öJavaScript½á¹¹ÖÐÈ¥.ÔÚjavascriptÖÐ"{"²Ù×÷·ûÈÝÒ×µ¼ÖÂÓï·¨»ìÏý:Ëü¿ÉÒÔÊÇÒ»¸ö´úÂë¿éµÄ¿ªÊ¼»òÕßÒ»¸ö¶ÔÏóÖ±½ÓÁ¿.ÎÒÃÇÔÚÍâ²ã°ü×°ÉÏÀ¨ºÅ±ÜÃâ»ìÏý.
          var j = eval('(' + this + ')');
          // µÚÈý²½ÊÇ¿ÉÑ¡µÄ,ÎÒÃǵݹé±éÀúÕâ¸öнṹ,°Ñÿ¸öÃû/Öµ¶Ô´«µÝµ½Ò»¸ö¹ýÂ˺¯Êý,ÒÔ±ã×öһЩת»».
          if (typeof filter === 'function') {
            function walk(k, v) {
              if (v && typeof v === 'object') {
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