5. python学习之for循环

问题：如何利用for循环，输出以下结果：

1 + 1 = 2
2 + 1 = 3
.
.
10 + 1 = 11

for num in range(1, 11):
    print(str(num) + ' + 1 =', num + 1)

for 和if 嵌套

songslist = ['Holy Diver', 'Thunderstruck', 'Rebel Rebel']
for song in songslist:
    if song == 'Holy Diver':
        print(song, ' - Dio')
    elif song == 'Thunderstruck':
        print(song, ' - AC/DC')
    elif song == 'Rebel Rebel':
        print(song, ' - David Bowie')

for 嵌套循环

乘法口诀表

for i in range(1, 10):
    for j in range(1, 10):
        print('{} X {} = {}'.format(i, j, i * j))