迫于无奈,请大家帮忙阿!
function expandIE(el) {
whichEl = eval(el + "Child");
whichIm = event.srcElement;
if (whichEl.style.display == "none") {
whichEl.style.display = "block";
whichIm.src = "../images1/bullet-minus.gif";
}
else {
whichEl.style.display = "none";
whichIm.src = "../images1/bullet-plus.gif";
}
}
这是个javaScript
whichEl = eval(el + "Child"); eval 是什么方法?
whichIm = event.srcElement; event.srcElement event和srcElement都是什么东东?
whichEl.style.display whichEl和style还有display 又是什么东东
这3句不懂。