/**
          * json对象转字符串形式
         */
         function json2str(o) {
             var arr = [];
             var fmt = function(s) {
                 if (typeof s == ‘object‘ && s != null) return json2str(s);
                 return /^(string|number)$/.test(typeof s) ? "‘" + s + "‘" : s;
              }
             for (var i in o) arr.push("‘" + i + "‘:" + fmt(o[i]));
             return ‘{‘ + arr.join(‘,‘) + ‘}‘;
          }

javascript json对象转字符串形式