什么是用C出口（0）和出口（1）有什么区别？ [英] What is the difference between exit(0) and exit(1) in C?

问题描述

谁能告诉我？是什么区别退出（0）和退出C语言（1）？

Can anyone tell me? What is the difference between exit(0) and exit(1) in C language?

推荐答案

什么是退出（0）和退出之间的差异（1） C语言？

What is the difference between exit(0) and exit(1) in C language?

退出（0）表示成功的程序终止和放大器;它是完全可移植的，虽然结果
退出（1）（通常）表示不成功的终止。然而，它的使用是不可移植的。

exit(0) indicates successful program termination & it is fully portable, While
exit(1) (usually) indicates unsucessful termination. However, it's usage is non-portable.

请注意，在C标准定义 EXIT_SUCCESS 和 EXIT_FAILURE 来从C程序返回的终止状态。

Note that the C standard defines EXIT_SUCCESS and EXIT_FAILURE to return termination status from a C program.

0 和 EXIT_SUCCESS 是标准规定的数值来表示成功的终止，然而，只有 EXIT_FAILURE 是返回不成功的终止标准值。 1 用于相同的许多实现，但。

0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for returning unsucessful termination. 1 is used for the same in many implementations though.

参考：

C99标准：7.20.4.3的退出函数结果
第5段

最后，控制被返回到主机环境。如果状态的值是零或
   EXIT_SUCCESS ，状态成功终止实施德科幻奈德形式
  回。如果状态值为 EXIT_FAILURE ，实施德科幻奈德形式
  的状态返回不成功的终止。否则，返回的状态是
  实施德网络定义。

Finally, control is returned to the host environment. If the value of status is zero or EXIT_SUCCESS, an implementation-defined form of the status successful termination is returned. If the value of status is EXIT_FAILURE , an implementation-defined form of the status unsuccessful termination is returned. Otherwise the status returned is implementation-defined.

这篇关于什么是用C出口（0）和出口（1）有什么区别？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！