Jea*_*ard 2 javascript javascript-events
我正在用javaScript编写我的第一个代码.
我想做这个 :-
我的代码是这样的,
<!DOCTYPE html>
<html>
<head>
<title>iRock - First Project</title>
<script type = "text/javascript">
function touchRock(){
var userName = prompt ("what is your name?","Enter your name here.");
if(userName){
alert("It is good to meet you, " "+userName+ " ".");
document.getElementById("firstImg").src="1.jpg";
}
}
</script>
</head>
<body onload = "alert('hello, I am your pet.');">
<div style = "margin-top:100px; text-align:centre">
<img id="firstImg" src="http://www.smiley-faces.org/wallpaper/smiley-face-wallpaper-widescreen-001.jpg" alt="iRock" style="cursor:pointer" onclick="touchRock()" />
</div>
</body>
</html>
Run Code Online (Sandbox Code Playgroud)
谁能告诉我这有什么问题?因为触摸图像后没有调用事件.
函数内部的字符串连接错误
alert("It is good to meet you, " "+userName+ " "."); 你必须在控制台中收到错误.
function touchRock(){
var userName = prompt ("what is your name?","Enter your name here.");
if(userName){
alert("It is good to meet you, " + userName + ".");
document.getElementById("firstImg").src="1.jpg";
}
}
Run Code Online (Sandbox Code Playgroud)
如果您使用的是Chrome.按F12 - >你将启用开发人员工具栏,因为会有控制台,你可以看到任何错误,调试javascript检查元素等.很明显你有FireFug for FireFox和DevToolbar for Int Explorer.
| 归档时间: |
|
| 查看次数: |
197 次 |
| 最近记录: |