C 基础语法

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a = 7;
    float b = 35.3;
    char c = 'c';
    char d[] = "chanpinxue.cn";
    double e = 7.77;

    printf("a=%d, f=%f, c=%c, d=%s, d=%lf \n", a, b, c, d, e);

    switch(a)
    {
        case 1:
            printf("a\n");
            break;
        case 7:
            printf("b\n");
            break;
        default:
            printf("default\n");
    }

    if (a == 7)
    {
        printf("a=7\n");
    }

    int i;
    for(i = 1; i<5; i++) {
        printf("i=%d\n", i);
    }

    //printf("Hello world!\n");
    return 0;
}