题目内容

在时间属性中,clientX用于返回当事件被触发时,鼠标指针的水平坐标。

A. 对
B. 错

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在canvas图形绘制中,路径只是草稿,真正绘制线必须执行stroke()方法根据路径进行描边。

A. 对
B. 错

onclick代表当前事件类型为鼠标单击事件。

A. 对
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分析如下的JavaScript代码段,并写出运行后的结果。var num = 10;function fn(){num = 20;alert(num)}alert(num)

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