字符型常量

字符型常量用单引号。

#include<stdio.h>

int main(void)
{
    int score;
    char grade;

    scanf_s("%d", &score);

    if (score >= 90)
    {
        grade = 'A';    //字符用引号
    }
    else
    {
        if (score >= 80)
        {
            grade = 'B';
        }
        else
        {
            if (score >= 70)
            {
                grade = 'C';
            }
            else
            {
                if (score >= 60)
                {
                    grade = 'D';
                }
                else
                {
                    grade = 'E';
                }
            }
        }
    }

    printf("%c\n", grade);

    return 0;
}

 

来源：https://www.cnblogs.com/2018jason/p/11777934.html