Python用户交互程序

#进行交互,row_input在python3里面等同于input

1 username = input("username:")
2 job = input("your job:")
3 age = int(input("your age:")) #string转换成int

#字符串拼接↓

 1 info = ‘‘‘
 2 ------now--------------
 3 Name:‘‘‘+ username +‘‘‘
 4 job:‘‘‘ + job + ‘‘‘
 5 ‘‘‘
 6 #----------------------
 7 info_2 = ‘‘‘
 8 ------now_2--------------
 9 Name:%s         #字符串string
10 job:%s
11 age:%d          #只能是int
12 ‘‘‘ % (username,job,age)
13
14 info_3 =‘‘‘
15 ------now_3--------------
16 Name:{name_1}
17 job:{job_2}
18 age:{age_3}
19 ‘‘‘.format(name_1=username,job_2=job,age_3=age) #｛｝里面的参数可以自己定义
20
21 print(info,‘\n‘)
22 print(info_2)
23 print(info_3)
24 #判断类型
25 print(type(age))

#输出结果

 1 username:gdr
 2 your job:it
 3 your age:24
 4
 5 ------now--------------
 6 Name:gdr
 7 job:it
 8
 9
10
11 ------now_2--------------
12 Name:gdr         #字符串string
13 job:it
14 age:24          #只能是int
15
16
17 ------now_3--------------
18 Name:gdr
19 job:it
20 age:24
21
22 <class ‘int‘>