convert.c:7:3: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by
2013-07-17 21:06
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产生这样的问题主要是因为你使用了某一个函数,却没有引入相应的头文件。这与java中其实是一样的。
例如:在java中,使用某一个工具类,就要导入相应的包。
例如:在java中,使用某一个工具类,就要导入相应的包。
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