數據結構-請教一個有關c語言的問題

請教一個有關c語言的問題

錯誤如下：
yuan.cpp
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(2) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(5) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(6) : error C2143: syntax error : missing ';' before '{'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(7) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(8) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(9) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(10) : error C2143: syntax error : missing ';' before 'PCH creation point'
i:\數據結構課程設計\yiyuanduoxiangshi\yuan.cpp(11) : fatal error C1004: unexpected end of file found
執行 cl.exe 時出錯.

yiyuanduoxiangshi.exe - 1 error(s), 0 warning(s)

代碼如下：

 #include<iostream>
using namespace std;
float sum;

typedef struct PNode
{
    float coef;
    int expn;
    struct PNode *next;
}PNode, *Polynomial;

void CreatePolyn(Polynomial &P,int n)
{//輸入m項的系數和指數，建立表示多項式的有序鏈表P
    P = new PNode;
    P->next = NULL;
    int i;
    Polynomial s,pre,q;
    for( i=1; i<=n; ++i )
    {
        s = new PNode;
        cout<<"請輸入系數和指數："<<endl;
        cin>>s->coef>>s->expn;
        pre = P;                        // pre用於保存q的前驅，初值為頭結點
        q = P->next;                    // *q為第一個大於輸入項指數的節點
        while( q && q->expn<s->expn )
        {
            pre = q;
            q = q->next;
        }
        s->next = q;
        pre->next = s;
    }
}

void AddPolyn(Polynomial &Pa,Polynomial &Pb)
{//多項式加法：Pa=Pa+Pb，利用兩個多項式的節點構成和多項式
    Polynomial p1,p2,p3,r;

    p1 = Pa->next;  p2 = Pb->next;      //p1和p2初值分別指向Pa和Pb的首元結點
    p3 = Pa;                            //p3指向和多項式的當前節點，初值為Pa
    while( p1 && p2 )                   //p1和p2均非空
    {
        if( p1->expn == p2->expn )      //指數相等
        {
            sum = p1->coef + p2->coef;      //sum保存兩項的系數和
            if( sum!=0 )                    //系數和不為零
            {
                p1->coef = sum;                     //修改Pa當前節點的系數值為兩項系數的和
                p3->next = p1;  p3 = p1;            //將修改後的Pa當前節點鏈在p3之後，p3指向p1
                p1 = p1->next;                      //p1指向後一項
                r = p2; p2 = p2->next; delete r;    //刪除Pb當前節點，p2指向後一項
            }
            else                                    //系數和為零
            {
                r = p1; p1 = p1->next;  delete r;
                r = p2; p2 = p2->next;  delete r;
            }
        }
        else if( p1->expn < p2->expn )  //Pa當前節點的指數值小
        {
            p3->next = p1;
            p3 = p1;
            p1 = p1->next;
        }
        else                            //Pb當前節點的指數值小
        {
            p3->next = p2;
            p3 = p2;
            p2 = p2->next;
        }
    }
    p3->next = p1?p1:p2;                //插入非空多項式的剩余段
    delete Pb;
}

void Output(Polynomial &Pa)
{
    Polynomial p;   //p用來指向當前節點
    p = Pa->next;
    cout<<"相加後的多項式為："<<endl;
    while ( p->next!=NULL )
    {
        cout<<p->coef<<"x^"<<p->expn<<"+";
        p = p->next;
    }
    cout<<p->coef<<"x^"<<p->expn<<endl;
}

void Userface()
{
    cout<<"           歡迎使用一元多項式加法器！              "<<endl;
    cout<<"---------------------------------------------      "<<endl;
//  cout<<"-                                           -      "<<endl;
    cout<<"-                                           -      "<<endl;
    cout<<"-                 1.計算                    -      "<<endl;
    cout<<"-                 2.退出                    -      "<<endl;
    cout<<"-                                           -      "<<endl;
//  cout<<"-                                           -      "<<endl;
    cout<<"---------------------------------------------      "<<endl;
    cout<<"請輸入序號選擇您需要的功能："<<endl;

}

void Jisuan()
{
    int n;
    cout<<"請輸入第一個多項式項數："<<endl;
    cin>>n;
    Polynomial Pa;
    CreatePolyn(Pa,n);
    cout<<"請輸入第二個多項式項數："<<endl;
    cin>>n;
    Polynomial Pb;
    CreatePolyn(Pb,n);
    AddPolyn(Pa,Pb);
    Output(Pa);
}

void Select()
{
    int k;
    cin>>k;
    switch(k)
    {
        case 1: Jisuan();
                break;
        case 2: exit(1);
        default:
                cout<<"輸入錯誤，請重新輸入："<<endl;
                Userface();
                Select();
                break;
}

 #include<iostream>
#include"Status.h"
using namespace std;

int main()
{
    Userface();
    Select();
    return 0;
}

最佳回答：

void Select()定義中switch少後括號