学习笔记----字符串分割

 1, 字符串的分割算法(标准库版)

void split(const string& s,char c,vector<string>& v)

{

string::size_type i = 0;

string::size_type j = s.find(c);

while (j != string::npos)

{

v.push_back(s.substr(i,j-i));

i = ++j;

j = s.find(c,j);

if (j == string::npos)

v.push_back(s.substr(i,s.length()) );

}

}

template <typename T>

void split(basic_string<T>& s,T c,vector<basic_string<T> >& v)

{

typename basic_string<T>::size_type i = 0;

typename basic_string<T>::size_type j = s.find(c);

while (j != basic_string<T>::npos)

{

v.push_back(s.substr(i,j-i));

i = ++j;

j = s.find(c,j);

if (j == basic_string<T>::npos)

{

v.push_back(s.substr(i,s.length()) );

}

}

}

2,字符串的分割算法(boost库实现)

int main()

{

string _str = “I|am|a|bad|boy”;

list<string> myList;

split(myList,_str,is_any_of(“|”));   // 这里用到了boost组库的方法:split.

list<string>::iterator p;

for (p = myList.begin(); p != myList.end(); ++p)

{

cout << *p << ” “;

}

cout << endl;

/***********************************************/

return 0;

}

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