遇到"undefined reference to sqrt"等系统库引用错误
右键项目选择Properties >> C/C++General >> Paths and Symbols >> Libraries >> Add >> 在方框内输入m >> OK
遇到"undefined reference to symbol ‘sem_close@@GLIBC_2.2.5’"的报错
右键项目选择Properties >> C/C++General >> Paths and Symbols >> Libraries >> Add >> 在方框内输入pthread >> OK
遇到"undefined reference ‘shm_open’"的报错
右键项目选择Properties >> C/C++General >> Paths and Symbols >> Libraries >> Add >> 在方框内输入rt >> OK
