先把代码敲出来，验证一下，最后一起提交，看见自己的名次上升，爽(^_^)
233333333
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共 2 条回复
233333333
(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)(^^)