c++：warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]

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首先，它任然是有效的C++代码，应为你写的char* 是具有c风格的字符串，所以g++不识别

可以选择在编译的时候加上：g++ -Wno-write-strings text.cpp //忽略警告。。。

其实这样是并不是很安全

上代码

  1 #include <iostream>  2 #include <stdio.h>  3 #include <string.h>  4 using namespace std;  5   6 class Student{  7   private:  8     int score;  9     char *name;//可变的变量 10   public: 11     Student(const char *name,int score); 12     Student(Student& stu); 13     ~Student(); 14     void  show(); 15 }; 16  17 Student::Student(const char *name1,int score1)//这里改了const 18 { 19   cout<<"constructing ..."<<endl; 20  21   name = new char[strlen(name1)+1]; 22   if(name != 0) 23   { 24     strcpy(name,name1); 25     score = score1; 26   } 27 } 28  29 Student::~Student() 30 { 31   cout<<"Destructing..."<<endl; 32   name[0] = '\0'; 33   delete name; 34 } 35  36 Student::Student(Student& stu) 37 { 38   cout<<"copy constructing ..."<<endl; 39   name = new char[strlen(stu.name)+1]; 40   if(name != 0) 41   { 42     strcpy(name,stu.name); 43  44     score=stu.score; 45   } 46 } 47  48 void Student::show() 49 { 50   cout<<name<<endl; 51   cout<<score<<endl; 52 } 53  54 int main() 55 { 56   Student stu1("huhao",101);//在这里传入的是const的变量 57   /* 58   Student stu2=stu1; 59   stu1.show(); 60   stu2.show();*/ 61 }

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