void main()
{
float n[4],apple=2.5,pear=1.8,banana=2,orange=1.6,price,charge,money
printf("请输入水果重量苹果 鸭梨 香蕉 橘子 (不买的水果请输入0): \n")
int i
for(i=0i<4i++)scanf("%f",&n[i])
printf("应付钱 %.2f 元\n",price=apple*n[0]+pear*n[1]+banana*n[2]+orange*n[3])
printf("请输入付款数:")scanf("%f",&money)
printf("应找钱 %.2f 元\n",money-price)
}
#include<stdio.h>void fun(){
int i, ch float price = 9.8, in_price, total = 0 while (1){
printf("\n1.算账模式\n2.算账\n3.退出\n")
scanf("%d", &i)
switch (i){
case 1://算账模式
{
do{
printf("应付款金额 %f 元.\n付款金额:", price)
scanf("%f", &in_price)
printf("实际付款金额%f,应找零金额 %f 元.\n", in_price, in_price - price)
total += price
scanf("%d", &ch)
} while (ch != -1)
break
}
case 2:{
printf("收款总额:%6.2f 元.\n", total) break
}
case 3:
exit(0)
}
}
}
void main()
{
fun()
}
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