sendMessage:function(){ var _this = this; var userWords = document.createElement('li'); var ulTag = document.querySelector('.list-box'); userWords.innerHTML = "<div class='contact-box__send'>"+ _this.userMessage +"</div>" userWords.setAttribute('class','talk users-words contact-box clearfix'); ulTag.appendChild(userWords); ulTag.scrollTop = ulTag.scrollHeight; //此处不能赋值 console.log(ulTag.scrollTop,ulTag.scrollHeight); } 我希望达到插入一个元素,内容区域自动滚动到底部
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