标签：pop previous make data- file init content div color
operation.h:5: error: previous definition of ‘class operation’
#ifndef OPERATION_H
#define OPERATION_H
...
...
#endif
makefile redefinition or previous definition
标签：pop previous make data- file init content div color
原文地址：http://www.cnblogs.com/lxjshuju/p/6913151.html
