c语言回顾—练习

4.用结构体实现复数相加

#include <stdio.h>

typedef struct complex
{
float i;
float j;
}complex;

int main(int argc, char const *argv[])
{
complex a,b;
printf("Please enter a complex:\n");
printf("Im=");
scanf("%f",&a.i);
printf("Re=");
scanf("%f",&a.j);

printf("Please enter one more complex:\n");
printf("Im=");
scanf("%f",&b.i);
printf("Re=");
scanf("%f",&b.j);

printf("Result:%.2f+%.2fi",a.i+b.i,a.j+b.j);

return 0;

}

5.编写一个程序输出它本身

int main()

{

FILE *fp;

char c;

fp=fopen(_FILE_,“r”);

do{

c=getc(fp);

putchar(c);

}while(c!=EOF);

fclose(fp);

return 0;

}

“`


6.