求解 哪里出錯了
#include?<stdio.h>
int?a=1;//定義燃油附加費
int?b=13;//定義起步費用
float?c=2.3;//定義每公里單價
float?pay;//定義總費用
float?money(int?km,?int?tm)
{
????if(tm>=25||tm<0)
????{
????printf("無效的時間格式")
????return?0;
????}
????else(tm>23||tm<5)
????{
????????c=?c*1.2;
????}
????if(km<=3)
????{
????????pay=b;
????}
????else
????{
????????pay=b+a+(km-3)*c;
????}
????return?pay;
}
int?main()
{
????int?shangwu,xiawu;
????shangwu=money(12,9);
????xiawu=money(12,6);
????printf("小明每天打車花費:%.2f\n",morning+nigh);
????return?0;
}
2015-09-03
float?money(int?km,?int?tm)你的函數返回的是浮點型，但是int?shangwu,xiawu;這里定義的是整型，將這里的整型改成float?shangwu,xiawu;就可以了
2015-09-02
if(tm>=25||tm<0)
????{
????printf("無效的時間格式")
????return?0;
????}
????else(tm>23||tm<5)
????{
????????c=?c*1.2;
????}
把這里的代碼改成
if(tm>=25||tm<0)
????{
????printf("無效的時間格式")
????return?0;
????}
????else????????????????????????????????????????????//這里不可以加判斷條件的
????{
????????c=?c*1.2;
????}
2015-09-02
printf("小明每天打車花費:%.2f\n",morning+nigh);這一行出錯了，已經修正，但還是錯誤
printf("小明每天打車花費:%.2f\n",shangwu+xiawu);