c++ 字符串的分割

c++ 字符串getline分割字符串存儲進vector中

#include <iostream>
#include <vector>
#include <string>
#include <sstream>

// I don't recommend using the std namespace in production code.
// For ease of reading here.
using namespace std;

// You could also take an existing vector as a parameter.
vector<string> split(string str, char delimiter) {
  vector<string> internal;
  stringstream ss(str); // Turn the string into a stream.
  string tok;
  
  while(getline(ss, tok, delimiter)) {
    internal.push_back(tok);
  }
  
  return internal;
}

int main(int argc, char **argv) {
  string myCSV = "one,two,three,four";
  vector<string> sep = split(myCSV, ',');

  // If using C++11 (which I recommend)
  /* for(string t : sep)
   *  cout << t << endl;
   */
   
  for(int i = 0; i < sep.size(); ++i)
    cout << sep[i] << endl;
}

和cin.getline()相似，可是cin.getline()屬於istream流，而getline()屬於string流，是不同的兩個函數這裏使用的getline()屬於string流。