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devcpp编译时出现
14 E:\cpp files\page 23(4).cpp ISO C++ forbids declaration of `String' with no type 程序如下
#include<iostream.h>
#include<string.h>
using namespace std;
class Stirng
{
      int length;
      char*str;
public:
       String(char*);
       String(const String &p) ;
       void Show(){
            cout<<str<<endl;}
};
String::String(char*s){
        if(s){
              length=strlen(s);
              str=new char[length+1];
              strcpy(str,s);}
        else{
             length=0;
             str=0;}
             }
String::String(const String &p){
                     length=p.length;
                     str=new char[length+1];
                     strcpy(str,p.str);
                     }
main(){
       String str1("This a constructing.");
       String str2(str1);
       cout<<"str1:";
       str1.Show();
       cout<<"拷贝后\nstr2:";
       str2.Show();
       getchar();
}