初识Python

 1 # Author:JiangQing
 2 # !/usr/bin/env python
 3 # -*- coding:utf-8 -*-
 4 import getpass
 5 
 6 """
 7 #变量
 8 name1 = "JiangQing"
 9 name2 = name1
10 name1 = "JiaXin"
11 print("Lover :",name1,"love",name2)
12 
13 msg1 = ‘Love JIAXIN‘
14 msg2 = ‘‘‘name1 = "JiangQing"
15 name2 = name1
16 name1 = "JiaXin"
17 print("Lover :",name1,"love",name2)
18 ‘‘‘
19 print(msg1)
20 """
21 
22 
23 """
24 # 输入/输出
25 #输入
26 name = input("Name:")
27 age = int(input("Age:"))
28 #print(type(age))
29 #print(type(str(age)))
30 job = input("Job:")
31 wife = input("Wife:")
32 #格式化输出
33 info1 = ‘‘‘
34 ---------- info of %s ----------
35 Name:%s
36 Age:%d
37 Job:%s
38 Wife:%s
39 ‘‘‘ % (name,name,age,job,wife)
40 
41 info2 = ‘‘‘
42 ---------- info of {_name} ----------
43 Name:{_name}
44 Age:{_age}
45 Job:{_job}
46 Wife:{_wife}
47 ‘‘‘.format(_name=name,_age=age,_job=job,_wife=wife)
48 
49 info2 = ‘‘‘
50 ---------- info of {0} ----------
51 Name:{0}
52 Age:{1}
53 Job:{2}
54 Wife:{3}
55 ‘‘‘.format(name,age,job,wife)
56 
57 print(info2)
58 """
59 
60 
61 #密文输入
62 #在开头引入库：getpass
63 """
64 _username = ‘JiangQing‘
65 _password = ‘666666‘
66 username = input("username:")
67 password = input("password:")
68 #password = getpass.getpass("password:")
69 
70 if _username==username and _password==password:
71     print("Welcome user {name} login...".format(name=username))
72 else:
73     print("Error")
74 print("JixXin")
75 
76 #print(username,password)
77 """
78 
79 
80 #循环   while     /      for  (for相当于C#里的foreach)
81 count = 0
82 while count<4:
83     count+=1
84 else:
85     print("Error")