实验二

#include <stdio.h>
int main() {
    double x,y;
    char c1,c2,c3;
    int a1,a2,a3;
    scanf("%d%d%d",a1,a2,a3);
    printf("%d,%d,%d\n",a1,a2,a3);
    scanf("%c%c%c",&c1,&c2,&c3);
    printf("%c%c%c\n",c1,c2,c3);
    scanf("%f,%lf",&x,&y);
    printf("%f,%lf\n",x,y);
    return 0;
} 

#include <stdio.h>
int main() {
    double x,y;
    char c1,c2,c3;
    int a1,a2,a3;
    scanf("%d%d%d",&a1,&a2,&a3);
    printf("%d,%d,%d\n",a1,a2,a3);
    scanf("%c%c%c",&c1,&c2,&c3);
    printf("%c%c%c\n",c1,c2,c3);
    scanf("%lf,%lf",&x,&y);
    printf("%lf,%lf\n",x,y);
    return 0;
} 

#include <stdio.h>
int main() {
    char ch;
    ch = ‘A‘;
    putchar(ch);      
    putchar(ch+32); 
    putchar(‘\x41‘); 
    putchar(‘\n‘);
    return 0;
}

#include <stdio.h>
int main() {
    char ch;
    ch = getchar();        
    putchar(ch);       
    printf("%c",ch);  
    return 0;
}

#include <stdio.h>
int main() {
    int level;
    printf("输入现在状态等级(1-5):  ");
    scanf("%d",&level);
    switch(level) {
        case 1: printf("high翻了:)\n"); break;
        case 2: printf("low爆了:(\n"); break;
        default: printf("一言难尽，无法概括。。。\n");
    }
    return 0;
} 

#include <stdio.h>
int main() {
    int level;
    printf("输入现在状态等级(1-5):  ");
    scanf("%d",&level);
    switch(level) {
        case 1: printf("high翻了:)\n");  
        case 2: printf("low爆了:(\n"); 
        default: printf("一言难尽，无法概括。。。\n");
    }
    return 0;
} 

#include <stdio.h>
int main() {
    int x;
    printf("请输入你的答案（A,B,C or D):");
    scanf("%c",&x);
    switch(x) {
        case ‘A‘ :printf("Binggo, you are right~") ;break; 
        default: printf("try again~");break;
    }
    return 0;
}