code: function(){
      var text = '';
  
      if(this.last_text_buf.length){
        text = this.last_text_buf.join('');
        this.last_text_buf = [];
  
        if(text !== ''){
          this.buf.push('__made_buf.push("' + text + '");');
        }
      }
    }
docs: 清除文本缓冲区