Use of c ++ stringstream and stringstream

Use of c ++ stringstream and stringstream

Stringstream ss; // used multiple times at a time. clear () indicates int I = 0; while (I <3) {ss <"21 "; string str; // str = ss. str (); // after this method is executed, the stream status flag bit will not be set to 1, but it may be repeated. You can // call str ("") to clear the original content. Ss> str; // after execution, the stream status flag bit may be set to 1 and need to be cleared; otherwise, subsequent operations will be affected. clear (); // cout <str <endl; I ++ ;}