點擊按鈕實現複製的功能

<input class="big" v-model="link" id="textAreas"/>
                <div class="alertBtn" @click="copy">複製連接</div>


		var obj = document.getElementById("textAreas");
		console.log(obj)
		obj.select(); 
		try{
			if(document.execCommand("Copy","false",null)){
				_this.message = "複製成功"
			// alert("複製成功");
			}else{
				_this.message = "複製失敗"
			// alert("複製失敗！");
			}
		}catch(err){
			_this.message = "複製錯誤！"
			// alert("複製錯誤！")
		}複製代碼