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fatal error LNK1169: 找到一个或多个多重定义的符号

2009-09-18 12:32:29| 分类： V S 编程 | 标签： |举报 |字号大中小订阅

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申明全局变量，全局函数一定要在cpp中申明

其他类引用该全局变量就include该cpp的h文件

然后extern一下就好了

否则容易出现该重复定义错误

这个"容易"是如何解释的呢？

例如A.h中如果申明了全局变量int Global;

在B.h中include "A.h"

extern int Global;

则你include A.h相当于把A.h中全局变量的申明也include进来了，编译器就会认为是重复定义

所以全局变量和函数申明一定要在cpp中

当.h文件里有函数实现时
VS2005编译器报此错误,
解决方法
1.在.h里的函数声明前加 inline
2.在项目->属性->链接器->命令行->附加选项中加 /force

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