C 语言实现商店优惠购物款额计算：可反复输入，负值提示重输！

以下是使用 C 语言实现的代码： ```c #include <stdio.h> int main() { float amount, total; printf("请输入购物额: "); scanf("%f", &amount); while (amount >= 0) { if (amount >= 1000) { total = amount * 0.85; } else if (amount >= 500 && amount < 1000) { total = amount * 0.9; } else if (amount >= 200 && amount < 500) { total = amount * 0.95; } else if (amount >= 100 && amount < 200) { total = amount * 0.97; } else if (amount >= 0 && amount < 100) { total = amount; } printf("应收款额为: %.2f\n", total); printf("请输入购物额: "); scanf("%f", &amount); } if (amount < 0) { printf("输入有误，请重新输入！\n"); } return 0; } ``` ######[AI写代码神器 | 288点数解答 | 2024-11-07 11:15:34]