学校作业急，编译时老是抱错，又看不懂，求高手帮忙
//(5.9.11)
/*
Read a sequence of words from input. Use Quit as a word that terminates the input.
Print the words in the order they were entered. Don 't print a word twice. Modify
the program to sort the words before printing them.
*/
/*
从键盘读入若干单词，Quit作为结束符，按顺序打印，别打重复的。打印前对单词进行排序
*/
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
class VString{
public:
void push(string);
void sortA();
void dump_all();
private:
bool cmpA(const char*,const char*);
bool cmp(const string,const string);
void dump(string);
vector <string> vs;
};
int main(){
VString vs;
string temp;
while(cin> > temp,temp!= "Quit ")
vs.push(temp);
vs.sortA();
vs.dump_all();
system( "pause ");
return 0;
}
void VString::push(string s){
if(vs.end()==find(vs.begin(),vs.end(),s))
vs.push_back(s);
}
void VString::sortA(){
std::sort(vs.begin(),vs.end(),&VString::cmp);//这里报错
}
void VString::dump_all(){
std::for_each(vs.begin(),vs.end(),&VString::dump);//这里报错
}
bool VString::cmpA(const char* s1,const char* s2){
if(s1[0]== '\0 ') return true;
if(s1[0]==s2[0])
return cmpA(s1+1,s2+1);
return s1[0] <s2[0];
}
bool VString::cmp(const string s1,const string s2){
return cmpA(s1.c_str(),s2.c_str());
}
void VString::dump(string s){
cout < <s < <endl;
}
//不知道怎么改
[解决办法]
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
class VString{
public:
void push(string);
void sortA();
void dump_all();
private:
static bool cmpA(const char*,const char*); //加上static
static bool cmp(const string,const string); //加上static
static void dump(string); //加上static
vector <string> vs;
};
int main(){
VString vs;
string temp;
while(cin> > temp,temp!= "Quit ")
vs.push(temp);
vs.sortA();
vs.dump_all();
system( "pause ");
return 0;
}
void VString::push(string s){
if(vs.end()==find(vs.begin(),vs.end(),s))
vs.push_back(s);
}
void VString::sortA(){
sort(vs.begin(),vs.end(),&VString::cmp);//这里报错
}
void VString::dump_all(){
for_each(vs.begin(),vs.end(),dump);//这里报错
}
bool VString::cmpA(const char* s1,const char* s2){
if(s1[0]== '\0 ') return true;
if(s1[0]==s2[0])
return cmpA(s1+1,s2+1);
return s1[0] <s2[0];
}
bool VString::cmp(const string s1,const string s2){
return cmpA(s1.c_str(),s2.c_str());
}
void VString::dump(string s){
cout < <s < <endl;
}
自己对照!
