方法:利用文本替换,JS代码如下:
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//高亮显示搜索到的关键字
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function HeightLight(Keyword)
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{
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//文本选择器
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var TextRange;
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//是否找到
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var Found=false;
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//找到的次数
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var Count = 0;
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TextRange = document.body.createTextRange();
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Found = TextRange.findText(Keyword);
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if (Found)
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{
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Count++;
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}
17![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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while (Found && Count > 0)
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{
20![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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TextRange.pasteHTML('<span style="background:yellow">' + Keyword + '</span>');
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//将滚动条定位到第一次查到的视口范围内
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if(Count==1)
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{
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TextRange.scrollIntoView();
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}
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//继续查找
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Found = TextRange.findText(Keyword);
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if (!Found)
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{
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Count = 0;
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}
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else
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{
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Count++;
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}
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}
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}
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
运行后效果如下:
全部代码:
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