swift编程输出九九乘法表。

好的，以下是 Swift 编程输出九九乘法表的示例代码：

for i in 1...9 {
    for j in 1...i {
        print("\(j) x \(i) = \(i*j)", terminator: "\t")
    }
    print("")
}

输出结果：

1 x 1 = 1
1 x 2 = 2    2 x 2 = 4
1 x 3 = 3    2 x 3 = 6    3 x 3 = 9
1 x 4 = 4    2 x 4 = 8    3 x 4 = 12   4 x 4 = 16
1 x 5 = 5    2 x 5 = 10   3 x 5 = 15   4 x 5 = 20   5 x 5 = 25
1 x 6 = 6    2 x 6 = 12   3 x 6 = 18   4 x 6 = 24   5 x 6 = 30   6 x 6 = 36
1 x 7 = 7    2 x 7 = 14   3 x 7 = 21   4 x 7 = 28   5 x 7 = 35   6 x 7 = 42   7 x 7 = 49
1 x 8 = 8    2 x 8 = 16   3 x 8 = 24   4 x 8 = 32   5 x 8 = 40   6 x 8 = 48   7 x 8 = 56   8 x 8 = 64
1 x 9 = 9    2 x 9 = 18   3 x 9 = 27   4 x 9 = 36   5 x 9 = 45   6 x 9 = 54   7 x 9 = 63   8 x 9 = 72   9 x 9 = 81