沒有重複方法

Question

我有課稱爲QuestionsAll與構造：

QuestionsAll(label question, Button b1, Button b2, Button b3, Button b4) 

和方法叫：

questions(string question, string answer1, string answer2, string answer3, string answer4, Button correctanswer) 

我如何使用它在我的表格：

void NewQuestion()  
{ 
    Random rd = new Random(); 
    int qu = rd.Next(0,4) 
    QuestionsAll q = new QuestionsAll(label1,Button1,Button2,Button3,Button4) //my question will be in label1, answer1 in Button1......) 

    if(qu == 1) q.questions("1+1 =", "1", "2", "3", "4", Button2); 
    if(qu == 2) q.questions("1+2 =", "1", "2", "3", "4", Button3); 
} 

當你點擊正確的問題，問題變化，但問題和答案重複。我怎樣才能不重複？

Answer 1

如果我說得對，那麼您只想解決所有問題？如果是這樣，請列出象徵問題的整數列表。一旦問題通過，從列表中刪除它。像這樣：

List<int> questions = new List<int>(); 
for (int i = 0; i < 5; i++){ 
    list.add(i); 
} 
//... 
int qu = rd.Next(0, questions.Count); 
//... Question is answered 
questions.Remove(qu);