问如何使用JavaScript删除HTML中的子节点？

EN

var mydiv = document.getElementById('FirstDiv');
while(mydiv.firstChild) {
  mydiv.removeChild(mydiv.firstChild);
}

//for Internet Explorer
document.getElementById("FirstDiv").removeNode(true);

//for other browsers
var fDiv = document.getElementById("FirstDiv");
fDiv.removeChild(fDiv.childNodes[0]); //first check on which node your required node exists, if it is on [0] use this, otherwise use where it exists.