Python语法笔记

遍历数组：

planets = ['Mercury', 'Venus', 'Earth', 'Mars', 'Jupiter', 'Saturn', 'Uranus', 'Neptune']
for planet in planets:
    print(planet, end=' ') # print all on same line

遍历5次：

for i in range(5):
    print("Doing important work. i =", i)

while循环：

i = 0
while i < 10:
    print(i, end=' ')
    i += 1

list:

squares = []
for n in range(10):
    squares.append(n**2)

字符串：

planet = 'Pluto'
planet[0]

输出：

"{}, you'll always be the {}th planet to me.".format(planet, position)

字典：

numbers = {'one':1, 'two':2, 'three':3}
numbers['one']