我正在输入20行内容。我想通过空格分隔每一行的内容,并将其放入一个二维向量中。如何创建一个二维向量?我在尝试将其推入向量时遇到了困难...
我的输入文件:
Mary had a little lamb
lalala up the hill
the sun is up
向量应该长成这个样子。
ROW 0: {"Mary","had", "a","little","lamb"}
ROW 1: {"lalala","up","the","hill"}
这是我的代码...
string line;
vector <vector<string> > big;
string buf;
for (int i = 0; i < 20; i++){
getline(cin, line);
stringstream ss(line);
while (ss >> buf){
(big[i]).push_back(buf);
}
}