python学习之路-day1

1 变量

赋值：变量可以是字符串、序列、元组、

 # author:hams.ali

 # 界面
 line = '-*'*20
 # 数字直接可以计算

 _var1 = ''

 # 字符变量拼接
 _var_2 = '\n\tmy age is ' + _var1

 # 不可改变数值的组元
 var = (2019, 9, 27)

 # 变量解压
 x , y ,z=(2019, 9, 17)
 print(x,y,z)
 print(line)# 分割
 # 多变量解压
 data = ['ali',  'english', 65, (2019, 9, 17)]
 name, subjet, soce, (year, moth, day) = data
 print('name', 'subjet', 'soce', 'year', 'moth', 'day')
 print(name, subjet, soce, '\t', year, moth, day)
 print(line)# 分割

 record = ['Dave', 'dave@example.com', '773-555-1212', '847-555-1212']
 name, email, *phone_numbers = record
 print('name:{}\nemail:{}\nphone:{}'.\
       format(name, email, phone_numbers))
 print(line)# 分割

输出效果：

2019 9 17
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
name subjet soce year moth day
ali english 65 2019 9 17
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
name:Dave
email:dave@example.com
phone:['773-555-1212', '847-555-1212']
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*