UC知道这个C语言程序怎么改？
来源：百度知道 编辑：UC知道 时间：2024/07/08 12:01:48
修改下面这个程序，接受一个名为sortOrder 的字符型参数。如果sortOrder是一个a，则只有当第一个数值大于第二个数值时，swap（）才交换这两个数值，即这个函数应该按升序返回数值（最小的数第一，最大的数第二）。对于任何其它的数值，函数应该按降序返回数值（最大的数第一，最小的数第二）
）
#include <stdio.h>
void swap(float *,float*);
int main()
{
float firstnum, secnum;
printf(“Enter two numbers:”);
scanf(“%f %f”, &firstnum,&secnum);
printf(“\n before the call to swap():\n”);
printf(“ the value in firstnum is %5.2f\n”,firstnum);
printf(“the value in secnum is %5.2f\n”,secnum);
swap(&firsnum, &secnum);
printf(“\n after the call to swap():\n”);
printf(“the value in firstnum is %5.2f\n”, firstnum);
printf(“the value in secnum is %5.2f\n”, secnum);
return 0;
}
void swap(float *num1Addr, float *num2Addr)
{
float temp;
temp=*num1Addr;
*num1addr=*num2Addr;
*num2addr=temp;
}
不是吧。。。显然没改。。。
）
#include <stdio.h>
void swap(float *,float*);
int main()
{
float firstnum, secnum;
printf(“Enter two numbers:”);
scanf(“%f %f”, &firstnum,&secnum);
printf(“\n before the call to swap():\n”);
printf(“ the value in firstnum is %5.2f\n”,firstnum);
printf(“the value in secnum is %5.2f\n”,secnum);
swap(&firsnum, &secnum);
printf(“\n after the call to swap():\n”);
printf(“the value in firstnum is %5.2f\n”, firstnum);
printf(“the value in secnum is %5.2f\n”, secnum);
return 0;
}
void swap(float *num1Addr, float *num2Addr)
{
float temp;
temp=*num1Addr;
*num1addr=*num2Addr;
*num2addr=temp;
}
不是吧。。。显然没改。。。
#include <stdio.h>
void swap(float *,float*);
int main()
{
float firstnum, secnum;
printf("Enter two numbers:");
scanf("%f %f", &firstnum,&secnum);
printf("\n before the call to swap():\n");
printf("the value in firstnum is %5.2f\n",firstnum);
printf("the value in secnum is %5.2f\n",secnum);
swap(&firstnum, &secnum);
printf("\n after the call to swap():\n");
printf("the value in firstnum is %5.2f\n", firstnum);
printf("the value in secnum is %5.2f\n", secnum);
return 0;
}
void swap(float *num1Addr, float *num2Addr)
{
float temp;
if(*num1Addr > *num2Addr)
｛
temp=*num1Addr;
*num1Addr=*num2Addr;
*num2Addr=temp;
｝
}
改好了