【已解决】JavaScript innerHTML 的问题

1 window.onload = function () {
2     var all = document.getElementById("all")
3     all.onclick = function () {
4         var h = document.createElement("div");
5         h.style.cssText = "width: 100px; height: 100px; ";
6         all.innerHTML = "Hello!";
7         all.appendChild(h);
8     }
9 }1 window.onload