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<title>用鼠標(biāo)滾輪滾動(dòng)控制圖片的縮小放大</title>
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<p>將鼠標(biāo)放在圖片上，點(diǎn)擊一下，然后滾動(dòng)鼠標(biāo)滾輪試試看</p>
<p><img border="0" src="/images/m01.jpg" onmousewheel="return bbimg(this)"></p>
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