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我是编程新手,有人对这些东西有参考吗?
%1f %2f
我知道 f 是指浮点数。为什么要在 f 前面加上“1”?
场宽
http://www.cplusplus.com/reference/clibrary/cstdio/printf/
Google 是你的朋友:请参阅Apple 开发人员文档。另请查看通用printf规范。