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  • 小宝的实验四-在分支循环结构中调用自定义函数

    //计算多个用户的电费
    #include<stdio.h>
    int main()
    {
        int i,n;
        double x,y;
        double fee(double x);
    
        printf("Enter n:");
        scanf("%d",&n);
    
        for(i=1;i<=n;i++)
        {
            printf("Enter x:");
            scanf("%lf",&x);
    
            if(x<=0)
                printf("输入错误,重新输入");
            else{
                y=fee(x);
            }
            printf("y=%.3f
    ",y);
        }
        return 0;
    }
    double fee(double x)
    {
        double y;
            if(x<=50)
            {
                y=0.53*x;
            }
            else
            {
                y=26.5+0.58*(x-50);
            }
        return y;
    }
    //计算并输出该用户应支付的电费
    #include<stdio.h>
    int main(void)
    {
        int n,i;
        double x,y;
    
        printf("Enter n:");
        scanf("%d",&n);
    
        for(i=1;i<=n;i++)
        {
            printf("Enter x=:");
            scanf("%lf",&x);
    
            if(x<=0)
            {
                printf("输入错误,重新输入");
            }
            else 
                if(x<=50)
            {
                y=0.53*x;
            }
            else
            {
                y=26.5+0.58*(x-50);
            }
            printf("y=f(%f)=%.2f
    ",x,y);
    
        }
        return 0;
    }

    //利用循环计算多个圆柱体体积
    #include<stdio.h>
    #define PI 3.14
    int main()
    {
        int h,r,n,i;
        double v;
        double cylinder(int r,int h);
    
        printf("Enter n=:");
        scanf("%d",&n);
    
        for(i=1;i<=n;i++){
            printf("Enter r and h:
    ");
            scanf("%d%d",&r,&h);
            if((r<=0)||(h<=0))
            {
                printf("输入错误,重新输入");
            }
            else{
                v=cylinder(r,h);
                printf("V=%.3f
    ",v);
            }
        }
    
        return 0;
    }
    double cylinder(int r,int h)
    {
        double result;
    
        result=PI*r*r*h;
    
        return result;
    }

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  • 原文地址:https://www.cnblogs.com/choubao/p/3373351.html
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