widget.obj:-1: error: LNK2019: unresolved external symbol "public: __cdecl
2017-05-04 00:00
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Qt中编译出现LNK2019错误： widget.obj:-1: error: LNK2019: unresolved external symbol "public: __cdecl INITool::INITool(class QObject *)" (??0INITool@@QEAA@PEAVQObject@@@Z) referenced in function "public: __cdecl Widget::Widget(class QWidget *)" (??0Widget@@QEAA@PEAVQWidget@@@Z)
出现这样的错误一般是声明了函数没有实现其定义，比如这里提示的是没有自定义类MyWidget的实现函数。如果你已经检查了确定定义是有的，比如我这个就确实有定义了的，那就把该项目编译出的build debug文件夹给删除掉，再重新编译，注意是编译出来的整个文件夹一起删，而不是clean清除后重新构建
出现这样的错误一般是声明了函数没有实现其定义，比如这里提示的是没有自定义类MyWidget的实现函数。如果你已经检查了确定定义是有的，比如我这个就确实有定义了的，那就把该项目编译出的build debug文件夹给删除掉，再重新编译，注意是编译出来的整个文件夹一起删，而不是clean清除后重新构建
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