python循环语句

      while 循环 

九九乘法表

# 九九乘法表
i = 1
while i <= 9:
    j = 1
    while j <= i:
        print(f'{j} * {i} = {i*j}t',end='')
        j += 1
    i += 1
    print(end='n')

        for 循环

        while...else 循环：只有当while正常结束后，才会执行else后面的语句

# while...else 语句 当while执行的语句正常结束后，才会执行else后面的语句
i = 1
while i <= 5:
    if i == 2:
        i += 1
        continue
    print(i)
    i += 1
else:
    while i <= 10:
        print(i)
        i += 1

        for...else 循环：也是只有当for语句正常结束后，才会执行后面else的语句

str1 = 'zzaheec'
for i in str1:
    if i == 'e':
        continue
    print(i)
else:
    print('循环正常结束')