Question

我试图在javascript中创建一个函数并传入参数＆＃34; name＆＃34;，然后当用户点击一张照片时，一个警告会说出像这样的照片＃34;这张照片是____＆＃34;

<img src="photos/PhotoVersailles.jpg" onclick="photoWhere(Versailles)" style="width:100%">

<script type="text/javascript">
function photoWhere(name)
    {
        alert("This photo was taken in "+name+".");
    }
</script>

为什么我的尝试不起作用？

Answer 1

尝试凡尔赛＆＃39;作为参数传递时

＆＃13;

function photoWhere(name) {
  alert("This photo was taken in " + name + ".");
}

＆＃13;

<img src="photos/PhotoVersailles.jpg" onclick="photoWhere(' Versailles')" alt="not found" style="width:100%">

＆＃13;

Answer 2

语法错误，请将警报更改为：

var nameStr = "This photo was taken in "+name+".";
alert(nameStr);

Answer 3

您可以使用此：

function photoWhere(Pic) { var _pic = Pic.name; _pic = "This photo was taken in "+_pic+"." alert(_pic); }

<img src="photos/PhotoVersailles.jpg" onclick="photoWhere(this)" 
name="Versailles" style="width:50%">

带参数的Javascript警报

3 个答案: