easyui textbox多行文本输入框高度根据内容伸缩

1. 直接上代码
    

   function makeTextArea(fromId){
   	//查找所有textare 方法  添加自适应
   	$("#"+fromId).find('textarea').each(function(index) {
   		//获取ID属性 IE 不支持attachEvent 写法
   		makeExpandingAreaIE(this);
   	});
   }
   
   function makeExpandingAreaIE(el){
   	var setStyle = function(el) {
   		el.style.height = 'auto';
   		el.style.height = el.scrollHeight + 'px';
   		//@Description 设置控件高度属性和textarea一致,避免游览器窗口大小变动时，输入框高度被easyui自动重置的问题 wangwq 2019/5/6 15:49
   		$("input#"+$(el).next().attr("name")).textbox("options").height=el.style.height;
   		$(el).parent("span").css("height",el.style.height);
   		$(el).css({"overflow-y":"hidden","padding-top":2});
   		// console.log(el.scrollHeight);
   	}  
   	var delayedResize = function(el) {  
   		window.setTimeout(function() {  
   				setStyle(el)  
   			},  
   			0);  
   	}  
   	if (el.addEventListener) {  
   		el.addEventListener('input', function() {  
   			setStyle(el)  
   		}, false);  
   		setStyle(el)  
   	}  else if (el.attachEvent) {  
   		el.addEventListener('onpropertychange', function() {  
   			setStyle(el)  
   		});  
   		setStyle(el)  
   	}    
   	if (window.VBArray && window.addEventListener) { //IE9  
   		el.addEventListener("onkeydown", function() {  
   			var key = window.event.keyCode;  
   			if (key == 8 || key == 46) delayedResize(el);  
   
   		});  
   		el.addEventListener("oncut", function() {  
   			delayedResize(el);  
   		}); //处理粘贴  
   	}  
   }