一. 打印九九乘法表
法一
# 定义起始行
row = 1
# 最大打印 9 行
while row <= 9:
# 定义起始列
col = 1
# 最大打印 row 列
while col <= row:
# end = "",表示输出结束后,不换行
# "\t" 可以在控制台输出一个制表符,协助在输出文本时对齐
print("%d * %d = %d" % (col, row, row * col), end="\t")
# 列数 + 1
col += 1
# 一行打印完成的换行
print("")
# 行数 + 1
row += 1
法二
# 九九乘法表
for row in range(1, 10):
for col in range(1, row + 1):
print("%d * %d = %d" % (col, row, row * col), end="\t")
print()
结果
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
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