C編譯時`true'+undeclared+(first+use+in+this+function)

原文：http://liuzhigong.blog.163.com/blog/static/178272375201121664244437/c++ 在編譯C語言時有時會遇到這樣的錯誤提示： `true' undeclared (first use in this function) or `false' undeclared (first use in this function) 就是說 bo

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