Javascript - document对象
注:页面上元素name属性和JavaScript引用的名称必须一致包括大小写
否则会提示你一个错误信息 "引用的元素为空或者不是对象"
对象属性
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常用对象方法
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body-主体子对象
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![](https://www.cnblogs.com/Images/dot.gif)
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常用对象事件
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location-位置子对象
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selection-选区子对象
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images集合(页面中的图象)
a)通过集合引用
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b)通过nane属性直接引用
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c)引用图片的src属性
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d)创建一个图象
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同时在页面上建立一个<img>标签与之对应就可以显示
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
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forms集合(页面中的表单)
a)通过集合引用
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b)通过标签name属性直接引用
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c)访问表单的属性
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图层对象的4个属性
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
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