系统报错systax error：'；'

[Cactus仙人掌]

int expenses(stacknode *p, int x1, int x2, int x3, int x4) { int w; if(x3!= 0) if(weather()==1) w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_1; //天气不同，价格不同 else if(weather()==2) w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_2; else w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_3; else if(weather()==1) w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_1; //天气不同，价格不同 else if(weather()==2) w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_2; else w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_3; return w; }

[自信男孩]

int expenses(stacknode *p, int x1, int x2, int x3, int x4)
{
    int w;

    if(x3!= 0) {
        if(weather()==1)
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_1;      //天气不同，价格不同
        else if(weather()==2)
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_2;
        else
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_3;
    } else {
        if(weather()==1)
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_1;      //天气不同，价格不同
        else if(weather()==2)
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_2;
        else
            w = (x1*24+x2+1-(p->data.time.day*24+p->data.time.hour))*price_3;
    }

    return w;

}

建议加上括号。另外，看不出有其他的问题。建议将所有代码都贴出来。
尤其是stacknode的定义

[_ZGq]

分号是中文的。应该换成英文的。按Shift键即可切换到英文模式。