python---循环语句

1. while 循环

简单的while语句

i = 0
while i < 3:
    print(i)
    i += 1

while循环嵌套

i = 1
while i < 10:
    j = 1
    while j <= i:
        print(f'{j} * {i} = {i*j}', end='  ')
        j += 1
    print()
    i += 1

运行结果：

 2. for循环

简单的for语句

list_val = [1, 33, 55, 10]
for item in list_val:
    print(item)

while循环嵌套

i = 1
for i in range(1, 10):
    j = 1
    for j in range(1, i+1):
        print(f'{j} * {i} = {i*j}', end='  ')
        j += 1
    print()
    i += 1