Javascript 有没有办法同时使用onmouseover和onmouseown？_Javascript_Html_Events

Javascript 有没有办法同时使用onmouseover和onmouseown？

javascript html events

Javascript 有没有办法同时使用onmouseover和onmouseown？,javascript,html,events,Javascript,Html,Events,此代码适用于onMouseOver和onMouseOut事件，但不适用于onMouseDown。下面是我用HTML5和JavaScript编写的代码。让我知道我犯的错误。请帮忙。提前谢谢 <!DOCTYPE html> <html> <head> <title>Zero cross</title> </head> <body> <script> functi

此代码适用于

onMouseOver

和

onMouseOut

事件，但不适用于

onMouseDown

。下面是我用HTML5和JavaScript编写的代码。让我知道我犯的错误。请帮忙。提前谢谢

<!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>


零交叉
函数更改颜色（VAL）{
document.getElementById（VAL.style.color=“红色”；
document.getElementById（VAL）.innerHTML=“单击以选择”；
}
再次更改功能（VAL）{
document.getElementById（VAL）.style.color=“#000000”；
如果（VAL==‘交叉’）{
document.getElementById（vals.innerHTML=“X”；
}否则{
document.getElementById（vals.innerHTML=“0”；
}
}
功能选择（VAL）{
document.getElementById（VAL.style.color=“黄色”；
如果（VAL==‘交叉’）{
document.getElementById（vals.innerHTML=“X”；
}否则{
document.getElementById（vals.innerHTML=“0”；
}
}

X


0

您忘记发送Id了

<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>

选中

onmousedown=“selection（'zero'）；”

和

onmousedown=“selection（'cross'）；”

您忘记发送Id了

<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>

选中

onmousedown=“selection（'zero'）；”

和

onmousedown=“selection（'cross'）；”