Question

Xcode编程为什么总在sleep时出现错误，出现conflicting types for“sleep”，以下为我的程序

#include <stdio.h>

#include <stdlib.h>

void CongratulateStudent(char*student,char*course,int numDays)

{

printf("%s has done as much %s Programming as I could fit into %d days.\n",

student,course,numDays);

}

int main(int argc, const char * argv[])

{

CongratulateStudent("Mark", "cocoa", 5);

sleep(2);

CongratulateStudent("Bo", "Objective-C", 2);

sleep(2);

CongratulateStudent("Mike", "Python", 5);

sleep(2);

CongratulateStudent("Ted", "ios", 5);

return 0;

}

Answer 1

//已修改调试完毕。
#include <stdio.h>

#include <stdlib.h>
#include<windows.h>//需要引入头文件

void CongratulateStudent(char*student,char*course,int numDays)

{

    printf("%s has done as much %s Programming as I could fit into %d days.\n",

           student,course,numDays);

}

int main(int argc, const char * argv[])

{

    CongratulateStudent("Mark", "cocoa", 5);

    Sleep(2);  //是 Sleep 不是 sleep

    CongratulateStudent("Bo", "Objective-C", 2);

    Sleep(2);

    CongratulateStudent("Mike", "Python", 5);

    Sleep(2);

    CongratulateStudent("Ted", "ios", 5);

return 0;

}

追问

谢谢，但我是在mac上，用的是Xcode

Answer 2

#include <unistd.h>
而不是stdlib.h
你可以试试