摘要:
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摘要:
addEventListener() and removeEventListener();These methods exist on all DOM nodes and accept three arguments: the event name to handle, the event hand... 阅读全文
摘要:
http://bbs.zhinengshe.com/thread-1200-1-1.html要求:实现div块的拖拽原理:拖拽过程中鼠标点和div块的相对位置保持不变。需要理解三点:1. 为什么要把onmousemove,onmouseup加在document上面 ?2. onmouseup要怎么使... 阅读全文