[Python知识库]Python第三天作业

# 1.打印9*9乘法表
#   1 * 1 = 1
#   2 * 1 = 2 2 * 2 = 4
#   3 * 1 = 3 3 * 2 = 6 3 * 3 = 9
#   ......
#   9 * 1 = 9 9 * 2 = 18 ... 9 * 9 = 81
#   三种方式：
#     a.for循环
#  b.while循环
#  c.单层while循环
for i in range(1, 10):
    for j in range(1, i + 1):
        print(i, "×", j, "=", i * j, end='\t')
    print()

i = 1
while i < 10:
    j = 1
    while j < i + 1:
        print(i, "*", j, "=", i * j, end="\t")
        j += 1
    i += 1
    print(' ')

i = 1
j = 1
while i < 10:
    if j <= i:
        print(i, "*", j, "=", i * j, end="\t")
        j += 1
    else:
        j = 1
        i += 1
        print()

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