我有一些行爲,我不明白。展開的循環正常工作!循環拋出IndexOutOfRangeExceptions。調試顯示有0..9個teamButton和0..9個卡片c [i]。 :(展開的循環工作,爲循環不起作用
private void Awake()
{
InitCards();
// This works!
teamButtons[0].onClick.AddListener(() => SetCard(c[0]));
teamButtons[1].onClick.AddListener(() => SetCard(c[1]));
teamButtons[2].onClick.AddListener(() => SetCard(c[2]));
teamButtons[3].onClick.AddListener(() => SetCard(c[3]));
teamButtons[4].onClick.AddListener(() => SetCard(c[4]));
teamButtons[5].onClick.AddListener(() => SetCard(c[5]));
teamButtons[6].onClick.AddListener(() => SetCard(c[6]));
teamButtons[7].onClick.AddListener(() => SetCard(c[7]));
teamButtons[8].onClick.AddListener(() => SetCard(c[8]));
// This yields an IndexOutOfRangeException
for (int i = 0; i < 9; ++i)
{
teamButtons[i].onClick.AddListener(() => { SetCard(c[i]); });
}
}
這是很多問題的重複,但它是一個很難通過搜索找到,所以我'll ll add a answer instead。 –
i ++ not ++ i,see htt p://stackoverflow.com/questions/24853/what-is-the-difference-between-i-andi-i – yes