#include <stdio.h>

int main01()
{
    int a = 10;
    int b = 3;
    int c = a % b;
    printf("c = %d\n", c);

    //a = a + 5;//语法正确，但是是个菜鸟
    a += 5;

    a = a + 1;
    a += 1;
    a++;
    a = a - 1;
    a -= 1;
    a--;
    return 0;
}

int main02()
{
    int i = 5;
    //i++;
    //++i;

    
    //int a = ++i;
    //int a = i++;
    int a = i++ + ++i;
    //i = i + 1;
    //int a = i + i;
    //i = i + 1;

    printf("%d\n", a);
    printf("%d\n", i);
    return 0;
}

int main03()
{



    int a = 2;
    int b = 3;
    int c = 4;
    int d = 5;
    int i = (a = b, a + d);

    printf("i = %d\n", i);

    a = 2; b = 3; c = 4; d = 5;
    i = (a + (b - c)) * d;
    printf("i = %d\n", i);

    a = 4;
    b = 3;
    c = 8;

    i = a = b = c;
    printf("i = %d\n", i);

    {
        i = 100;
        a = 30;
    }

    ;//空语句

    printf("i = %d\n", i);


    for (; ; )//循环语句，代表复合语句内部的代码要执行3次
    {
        printf("hello\n");
    }

    return 0;
}

int main()
{
    //double f = 3 / 2;//c语言两个整数相除的结果自动转化为一个整数
    //double f = (double)3 / 2;//(double)3,意思是将整数3强制转化为double型
    //double f = 3.0 / 2;

    int a = 3;
    int b = 2;
    double f = (double)a / b;
    printf("%f\n", f);
    return 0;
}