#include <stdio.h>
int main()
{
printf(“Hello,world!\n”);
reture0;
}
感谢电脑协会群里老哥纠正错误
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/486125a0c4e9c15f1603888695499.png)
昊弟纠正代码
#include "stdio.h"
void main()
{
printf("Hello,陕邮!\n");
}
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/image1603933929115.png)
第一套:长方形
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/image1603933971215.png)
#include "stdio.h"
void main()
{
printf("*********************\n");
printf("* 陕 *\n");
printf("* 邮 *\n");
printf("* 我 *\n");
printf("* 爱 *\n");
printf("* 你 *\n");
printf("* 哦 *\n");
printf("*********************\n");
}
第一套图形源代码
第二套:三角形
第三套:菱形
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/image1604042123399.png)
第四套:歌词
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/image1604042183427.png)
c语言第一课3三套图像+四行歌词打包文件
预习整数变量的定义和使用
#include <stdio.h>
int main(){
int a,b,c,d;
unsigned u;
a=12;
b=-24;
u=10;
c=a+u;
d=b+u;
printf("a+u=%d,b+u=%d\n",c,d);
return 0;
}
![](https://saas.bk-cdn.com/t/28fa19a1-bd4e-468d-b51a-cc1195795049/u/e41e744f-8a62-49c8-9e5b-0b3866856d0c/image1604044956046.png)