编写一个程序以确定分别由signed及unsigned限定的char、short、int及long类型变量的取值范围。采用打印标准头文件中的相应值以及直接计算两种方式实现

#include <stdio.h>
#include <limits.h>
main() {
    printf("采用打印标准头文件limits.h的相应值\n");
    //signer types
    printf("signed char min =%d\n", SCHAR_MIN);
    printf("signed char max =%d\n", SCHAR_MAX);
    printf("signed short min =%d\n", SHRT_MIN);
    printf("signed short max =%d\n", SHRT_MAX);
    printf("signed int min =%d\n", INT_MIN);
    printf("signed int max =%d\n", INT_MIN);
    printf("signed long min =%d\n", LONG_MIN);
    printf("signed long max =%d\n", LONG_MIN);

    //unsigned types

    printf("unsigned char max =%u\n", UCHAR_MAX);
    printf("unsigneed short max =%u\n", USHRT_MAX);
    printf("unsigned int max =%u\n", UINT_MAX);
    printf("unsigned long max =%u\n", ULLONG_MAX);
    system("pause");
    return 0;
}