printf要什么预处理指令
时间: 2023-11-13 16:51:50 浏览: 35
printf需要#include预处理指令来包含<stdio.h>头文件。头文件<stdio.h>中包含了printf函数的声明和定义,使得在程序中可以使用printf函数。所以在使用printf函数之前,需要在源代码中添加#include <stdio.h>预处理指令。
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