code: function (obj) {
              if (obj.data) {
                  switch (obj.type) {
                      case 0:
                          this.segments.push('$saker_writeLiteral$("' + this.escape(obj.data) + '");');
                          break;
                      case 1:
                          this.segments.push('$saker_write$(' + obj.data + ');');
                          break;
                      case 2:
                          this.segments.push(obj.data);
                          break;
                  }
              }
          }
docs: 添加语句片段。Add segment to array.
  @param obj