scanf

 1 int a,b;
 2 long c;
 3 void fun(int a,int b,long *c)
 4 {*c=(b%10)*1000+(a%10)*100+(b/10)*10+a/10;}
 5 int main()
 6 {
 7     scanf("%d%d",&a,&b);
 8     long *p=&c;
 9     fun(a,b,p);
10     printf("%ld\n",c);
11 }

 

float  :四个字节输入用“%f”
double ：八个字节 数入用"%lf"
输出都可以

 

转载于:https://www.cnblogs.com/tingtin/p/10009779.html