第三讲：语句

# -*- coding:utf-8 -*-
# 语句
# if语句
a = 2
if a == 1:
    print ( "a==1")
elif a == 2:
    print ("a==2")
else:
    print ("a!=1")
# for语句
list_a = [1, 2, "test"]
for i in list_a:
    print (i)
for i in range(0, 10):
    print (i)
a = 1
while a != 10:
    print (a)
    a += 1