C语言计算快递费用：根据重量自动计算邮费

#include <stdio.h>

int main() { float weight, fee; printf('请输入邮件重量（kg）：'); scanf('%f', &weight); if (weight <= 1) { fee = 10; } else if (weight > 1) { int delta = weight - 1; if (delta % 0.5 == 0) { fee = 10 + delta / 0.5 * 3; } else { fee = 10 + (delta / 0.5 + 1) * 3; } } printf('邮费为：%.2f元 ', fee); return 0; }