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刚刚用C语言写了个商店交易小程序.写完后感觉头发要秃头了！主要难在用结构和指针。其他数值循环那些还行！
感觉指针巨方便，但用的时候简直能绕死人
@Bruce 真的很方便,但是用起来真的会秃头！！！！
指针是速度快吧
