在visual c++ 6.0中运行有错误，dev中缺没问题

[走好每一步]

// 出版物
class CPublication{
private:
char * p_title;
float price;
char date[20];
bool on_loan;
public:
CPublication(char *p_t, float p, char *p_d);
void set(char *p_t, float p, char *p_d);
bool borrowIt();
bool returnIt();
void print()const;
~CPublication() { delete [] p_title; }
};
#include <iostream>
#include <cstring>
using namespace std;

CPublication::CPublication(char *p_t=NULL, float p=0.0, char *p_d=NULL){
p_title = new char [strlen(p_title)+1];
strcpy (p_title, p_t);
price = p;
strcpy (date, p_d);
on_loan = true;
}
void CPublication::set(char *p_t, float p, char *p_d){
delete [] p_title;
p_title = new char [strlen(p_t)+1];
strcpy (p_title, p_t);
price = p;
strcpy (date, p_d);
on_loan = true;
}
bool CPublication::borrowIt(){
if (on_loan == true){
on_loan = false;
return true;
}
else{
cout << "The book has been gone through." << endl;
return false;
}
}
bool CPublication::returnIt(){
on_loan = true;
return true;
}
void CPublication::print()const{
cout << "书名：" << p_title << endl;
cout << "价格：" << price << endl;
cout << "出版日期：" << date << endl;
if (on_loan == true)
cout << "可供借出" << endl;
else
cout << "已借出" << endl;
}

int main(){
CPublication shu("语文课本", 45.0, "2008.10.6");
shu.borrowIt();
shu.returnIt();
shu.print();
system("pause");
return 0;
}

[xkyx_cn]

class CPublication{ 
    private: 
    char * p_title; 
    float price; 
    char date[20]; 
    bool on_loan; 
    public: 
    CPublication(char *p_t, float p, char *p_d); 
    void set(char *p_t, float p, char *p_d); 
    bool borrowIt(); 
    bool returnIt(); 
    void print()const; 
    ~CPublication() { delete [] p_title; } 
}; 
#include <iostream> 
#include <cstring> 
using namespace std; 

CPublication::CPublication(char *p_t=NULL, float p=0.0, char *p_d=NULL){ 
    p_title = new char [strlen(p_t)+1];   // p_t写成p_title了，改过来就好了
    strcpy (p_title, p_t); 
    price = p; 
    strcpy (date, p_d); 
    on_loan = true; 
} 
void CPublication::set(char *p_t, float p, char *p_d){ 
    delete [] p_title; 
    p_title = new char [strlen(p_t)+1]; 
    strcpy (p_title, p_t); 
    price = p; 
    strcpy (date, p_d); 
    on_loan = true; 
} 
bool CPublication::borrowIt(){ 
    if (on_loan == true){ 
        on_loan = false; 
        return true; 
    } 
    else{ 
        cout << "The book has  been  gone through." << endl; 
        return false; 
    } 
} 
bool CPublication::returnIt(){ 
    on_loan = true; 
    return true; 
} 
void CPublication::print()const{ 
    cout << "书名：" << p_title << endl; 
    cout << "价格：" << price << endl; 
    cout << "出版日期：" << date << endl; 
    if (on_loan == true) 
        cout << "可供借出" << endl; 
    else 
        cout << "已借出" << endl; 
} 

int main(){ 
    CPublication shu("语文课本", 45.0, "2008.10.6"); 
    shu.borrowIt(); 
    shu.returnIt(); 
    shu.print(); 
    system("pause"); 
    return 0; 
}

[太乙]

#include <iostream> 
#include <cstring> 
using namespace std; 


// ³ö°æÎï 
class CPublication{ 
    private: 
    char * p_title; 
    float price; 
    char date[20]; 
    bool on_loan; 
    public: 
    CPublication(char *p_t, float p, char *p_d); 
    void set(char *p_t, float p, char *p_d); 
    bool borrowIt(); 
    bool returnIt(); 
    void print()const; 
    ~CPublication() { delete [] p_title; } 
}; 

CPublication::CPublication(char *p_t=NULL, float p=0.0, char *p_d=NULL){ 
    p_title = new char [strlen(p_t)+1]; 
    strcpy (p_title, p_t); 
    price = p; 
    strcpy (date, p_d); 
    on_loan = true; 
} 
void CPublication::set(char *p_t, float p, char *p_d){ 
    delete [] p_title; 
    p_title = new char [strlen(p_t)+1]; 
    strcpy (p_title, p_t); 
    price = p; 
    strcpy (date, p_d); 
    on_loan = true; 
} 
bool CPublication::borrowIt(){ 
    if (on_loan == true){ 
        on_loan = false; 
        return true; 
    } 
    else{ 
        cout << "The book has  been  gone through." << endl; 
        return false; 
    } 
} 
bool CPublication::returnIt(){ 
    on_loan = true; 
    return true; 
} 
void CPublication::print()const{ 
    cout << "ÊéÃû£º" << p_title << endl; 
    cout << "¼Û¸ñ£º" << price << endl; 
    cout << "³ö°æÈÕÆÚ£º" << date << endl; 
    if (on_loan == true) 
        cout << "¿É¹©½è³ö" << endl; 
    else 
        cout << "Òѽè³ö" << endl; 
} 
    
int main(){ 

    CPublication shu("ÓïÎĿα¾", 45.0, "2008.10.6"); 
    shu.borrowIt(); 
    shu.returnIt(); 
    shu.print(); 
    system("pause"); 
    return 0; 
} 


出错在这：




CPublication::CPublication(char *p_t=NULL, float p=0.0, char *p_d=NULL){ 
    p_title = new char [strlen(p_t)+1]; //这里strlen的参数应该是p_t
    strcpy (p_title, p_t); 
    price = p; 
    strcpy (date, p_d); 
    on_loan = true; 
} 

[chlaws]

p_title = new char [/*strlen(p_title)+*/100]; strlen(p_title) 出错

[迷途的书童]

楼上！太强啦！顶

[disciple]

同意1楼，楼主大意了

[backway]

p_title = new char [strlen(p_t)+1];

[走好每一步]

这几天校园网老是搞掉线，终于来了，结贴了