编译器错误：找不到成员与&&

Question

var card:[[Int]] = bank[numberOfMarked].card; 

    if ((card[0][0] == 0) && (card[1][1] == 0) && (card[2][2] == 0) && (card[3][3] == 0) && (card[4][4] == 0)) 
    { 
    return true; 
    } 

“标”我正在错误“找不到成员‘下标’和编译器指向最后& &

Answer 1

我倒是file a bug。 - 我得到这个错误，以及：note: expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions与表达无可厚非，但使用它的斯威夫特，现在你需要把它分解成几个Bool变量：

let firstTwo = card[0][0] == 0 && card[1][1] == 0 
let lastThree = card[2][2] == 0 && card[3][3] == 0 && card[4][4] == 0 
if firstTwo && lastThree { 
    return true 
}