c++读取中文字符

#include<iostream>

#include<fstream>

#include<string>

using namespace std;



//subs1是要查找的字符串

//subs2 是要将subs1从text中替换掉的字符串

void replace(wstring &text, const wstring &subs1, const wstring &subs2)

{

	wcout<<subs1<<" "<<subs1.size()<<endl;

	wcout<<subs2<<" "<<subs2.size()<<endl;



	wstring::size_type beg = text.find(subs1);



	cout<<beg<<endl;



	if(beg >= text.size())

	{

		cout<<"不能匹配"<<endl;

		return;

	}



	text.erase(beg, subs1.size());

	text.insert(beg, subs2);



	/*while(beg < text.size())

	{

		beg = text.find(subs1);

		text.erase(beg, subs1.size());

		text.insert(beg, subs2);

	}*/

}



//从file中读取文本，然后将str给初始化。

void init(wifstream &is, const string &file, wstring &str)

{	

	is.close();

	is.clear();

	is.open(file.c_str());

	str = L"";

	

	if(!is)

	{

		cerr<<"Cannot open the file : "<<file<<endl;

		return;

	}

	wstring line;

	locale china("chs");

	wcout.imbue(china);



	while(getline(is,line))

	{

		str = str + line + L"\n";

		wcout << str << endl;

	}

	//string s = str.rfind("\n");

	str.erase(str.rfind(L"\n"), str.size());		

}



//将替换好的text再重新输出到一个文件中

void output_file(wofstream &os, const string &out_file, const wstring &str)

{

	os.close();

	os.clear();

	os.open(out_file.c_str());



	if(!os)

	{

		cerr<<"Cannot output the string to the file : "<<out_file<<endl;

	}



	os<<str<<endl;

	os.close();

}



int main()

{

	//file path  F:\\sb\\sb3\\www.bill-jc.com\\test.html

	string in_file = "F:\\test3.txt";

	string out_file = "f:\\test.html";

	string str1_file = "f:\\test1.txt";

	string str2_file = "f:\\test2.txt";



	//variable

	locale china("chs");

	wstring text, str1, str2;

	wifstream is;

	wofstream os;



	is.imbue(china);

	os.imbue(china);



	init(is, in_file, text);



	while(true)

	{

		init(is, str1_file, str1);

		init(is, str2_file, str2);



		replace(text, str1, str2);		



		cout<<"Y/N"<<endl;

		char i;

		cin>>i;

		if(i == 'N')

			break;		

	}



	//output_file(os, out_file, text);



	return 0;

}