```
#include<stdio.h>
int main()
{ char c = 0;
printf("%u\n", sizeof(c));
printf("%u\n", sizeof(-c));
printf("%u\n", sizeof(+c));
return 0;
}
```的sizeof(c)和sizeof(+c)有什么区别?为什么sizeof(+c)和sizeof(c)的字节个数不同
```
#include<stdio.h>
int main()
{ char c = 0;
printf("%u\n", sizeof(c));
printf("%u\n", sizeof(-c));
printf("%u\n", sizeof(+c));
return 0;
}
```的sizeof(c)和sizeof(+c)有什么区别?为什么sizeof(+c)和sizeof(c)的字节个数不同