不說(shuō)代碼實(shí)現(xiàn)的功能，我把語(yǔ)法錯(cuò)誤給你找出來(lái)注釋了，你可以參考一下

望采納謝謝，畢竟我也花了時(shí)間

#include?<stdio.h>
int?x,t,s,m,f;//這一行少個(gè)分號(hào)?,缺少變量f的定義?
int?shijian(int?t)//這一行函數(shù)形參沒(méi)有加類型?
{
????if(t>5?&&?t<23)
????x=2.3;
????else
????x=2.3*1.2;
????return?x;
}
int?juli(int?s)???//這一行函數(shù)形參沒(méi)有加類型??
{
????if(s<0)
????printf("距離輸入有誤!");
????else?if(s<3)//用大括號(hào)把語(yǔ)句括起來(lái)?
???{??m=13+1;?//少個(gè)分號(hào)?
????printf("車費(fèi)一共:%d元",m);
????}?
????else{?//用大括號(hào)把語(yǔ)句括起來(lái)?
?????f=m+x*(s-3)+1;
????printf("車費(fèi)一共:%d元",f);
????}?
}



int?main()
{???shijian(10);
????juli(12);
????return?0;
}