delAns method
void
delAns()
Implementation
void delAns(){
// 計算結果保持バッファを解放
_info[_curIndex]._ans = [];
_info[_curIndex]._ansNum.set( 0 );
}
void delAns(){
// 計算結果保持バッファを解放
_info[_curIndex]._ans = [];
_info[_curIndex]._ansNum.set( 0 );
}