合并（拼接）字符串 "+"

1、"+"的用法：


 1 #!/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 first_name = "ada"
 4 last_name = "lovelace"
 5 full_name = first_name+" "+last_name
 6 print(full_name)
 7 
 8 执行结果为：
 9 C:Users	byAppDataLocalProgramsPythonPython37python.exe C:/py3/rumen_shijian/hebing_+.py

10 ada lovelace
11 
12 进程已结束,退出代码0

2、"+"和.title()的用法：

 1 first_name = "ada"
 2 last_name = "lovelace"
 3 full_name = first_name+" "+last_name
 4 print("Hello,"+ full_name.title() + "!")   #full_name中的字符 首字母大写
 5 
 6 
 7 执行结果为：
 8 
 9 C:Users	byAppDataLocalProgramsPythonPython37python.exe C:/py3/rumen_shijian/hebing_+.py

10 Hello,Ada Lovelace!
11 
12 进程已结束,退出代码0

3、使用拼接来创建消息，再把整条消息都储存在一个变量中：

 1 first_name = "ada"
 2 last_name = "lovelace"
 3 full_name = first_name+" "+last_name
 4 message = "Hello,"+ full_name.title() + "!"
 5 print(message)
 6 
 7 执行结果为：
 8 
 9 C:Users	byAppDataLocalProgramsPythonPython37python.exe C:/py3/rumen_shijian/hebing_+.py

10 Hello,Ada Lovelace!
11 
12 进程已结束,退出代码0