Extjs 为grid中的按钮添加事件

Question

  {
                    flex: 1,
                    text: '分配图纸',
                    renderer:function(value,cellmeta){
                        var returnStr = "<INPUT type='button' class='fen'  value='分配图纸'>";
                        return returnStr;
                    },
                    listeners: function () {
                        click:drawing()
                    }

Answer 1

 listeners:{
                        click:drawing///()
                    }