code: function (str) {    
              var result = '', name;
              var reg = new RegExp('[a-zA-Z0-9\- ]');
              for (var i = 0, len = str.length; i < len; i++) {
                  var ch = str.substr(i, 1), unicode = ch.charCodeAt(0);
                  if (unicode > 40869 || unicode < 19968) {
                      result += ch;
                  } else {
                      name = this._getFullChar(ch);
                      if (name !== false) {
                          result += name;
                      }
                  }
              }
              return result;
          }
docs: 提取拼音, 返回首字母大写形式