Linux系统下的多线程遵循POSIX线程接口，称为pthread。编写Linux下的多线程程序，需要使用头文件pthread.h，连接时需要使用库libpthread.a。-Linux systems adhere to POSIX thread-multi-threaded interface, known as the pthread. Prepared under the Linux multi-threaded process, need to use the header file pthread.h, connections need to use the library libpthread.a.