<input name=”url” type=”text” size=”50″ onkeydown=”return disableEnter(event)” />
function disableEnter(event){
let keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
//判断是否为回车键
if (keyCode == 13){
//屏蔽回车键
event.keyCode = 0;
return false;
}
}