#include <stdio.h>
#include <stdlib.h>
int main()
{
int x = 1;
printf("please make a selection with your keyboard\n");
sleep(1);
printf("1.\n");
char input;
scanf("%c", &input);
switch (input) {
case '1':
x = x + 1;
printf(x);
}
return(0);
}
我正在尝试将一个变量添加到自身,然后将该变量打印出来,但我似乎无法让我的代码正常工作。
我的输出错误是
newcode1.c: In function ‘main’:
newcode1.c:20:2: warning: passing argument 1 of ‘printf’ makes pointer from integer without a cast [enabled by default]
In file included from newcode1.c:1:0:
/usr/include/stdio.h:362:12: note: expected ‘const char * __restrict__’ but argument is of type ‘int’
newcode1.c:20:2: warning: format not a string literal and no format arguments [-Wformat-security]