可以使用兩個(gè)循環(huán)嵌套來實(shí)現(xiàn)九九乘法表的輸出,其中外層循環(huán)控制乘法表的行數(shù),內(nèi)層循環(huán)控制每一行的列數(shù)。
以下是使用 Scala 實(shí)現(xiàn)九九乘法表的代碼示例:
object MultiplicationTable {
def main(args: Array[String]): Unit = {
for (i <- 1 to 9) {
for (j <- 1 to i) {
print(j + " * " + i + " = " + (i * j) + "\t")
}
println()
}
}
}
運(yùn)行上述代碼,即可輸出如下的九九乘法表:
1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6 3 * 3 = 9
1 * 4 = 4 2 * 4 = 8 3 * 4 = 12 4 * 4 = 16
1 * 5 = 5 2 * 5 = 10 3 * 5 = 15 4 * 5 = 20 5 * 5 = 25
1 * 6 = 6 2 * 6 = 12 3 * 6 = 18 4 * 6 = 24 5 * 6 = 30 6 * 6 = 36
1 * 7 = 7 2 * 7 = 14 3 * 7 = 21 4 * 7 = 28 5 * 7 = 35 6 * 7 = 42 7 * 7 = 49
1 * 8 = 8 2 * 8 = 16 3 * 8 = 24 4 * 8 = 32 5 * 8 = 40 6 * 8 = 48 7 * 8 = 56 8 * 8 = 64
1 * 9 = 9 2 * 9 = 18 3 * 9 = 27 4 * 9 = 36 5 * 9 = 45 6 * 9 = 54 7 * 9 = 63 8 * 9 = 72 9 * 9 = 81