此代码对于onMouseOver和onMouseOut事件工作正常，但对于onMouseDown不起作用。
这是我用HTML5和JavaScript编写的代码。让我知道我犯的错误。请帮忙。
提前致谢。
<!DOCTYPE html>
<html>
<head>
<title>Zero cross</title>
</head>
<body>
<script>
function changecolor(vals) {
document.getElementById(vals).style.color = "red";
document.getElementById(vals).innerHTML = "Click to select";
}
function changeagain(vals) {
document.getElementById(vals).style.color = "#000000";
if (vals == 'cross') {
document.getElementById(vals).innerHTML = "X";
} else {
document.getElementById(vals).innerHTML = "0";
}
}
function selection(vals) {
document.getElementById(vals).style.color = "yellow";
if (vals == 'cross') {
document.getElementById(vals).innerHTML = "X";
} else {
document.getElementById(vals).innerHTML = "0";
}
}
</script>
<div align="center">
<p id="cross" onmouseover="changecolor('cross');" onmouseout="changeagain('cross');" onmousedown="selection();">
X
</p>
<p id="zero" onmouseover="changecolor('zero');" onmouseout="changeagain('zero');" onmousedown="selection();">
0
</p>
</div>
</body>
最佳答案
您忘了发送ID
<p id="cross" onmouseover="changecolor('cross');" onmouseout="changeagain('cross');" onmousedown="selection('cross');">
X
</p>
<p id="zero" onmouseover="changecolor('zero');" onmouseout="changeagain('zero');" onmousedown="selection('zero');">
0
</p>
检查
onmousedown="selection('zero');"和onmousedown="selection('cross');"关于javascript - 有什么办法可以同时使用onmouseover和onmousedown吗？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/16881435/