python开发之str.format()用法实例分析

#使用str.format()函数
#使用'{}'占位符
print('I\'m {},{}'.format('Hongten','Welcome to my space!'))
print('#' * 40)
#也可以使用'{0}','{1}'形式的占位符
print('{0},I\'m {1},my E-mail is {2}'.format('Hello','Hongten','hongtenzone@foxmail.com'))
#可以改变占位符的位置
print('{1},I\'m {0},my E-mail is {2}'.format('Hongten','Hello','hongtenzone@foxmail.com'))
print('#' * 40)
#使用'{name}'形式的占位符
print('Hi,{name},{message}'.format(name = 'Tom',message = 'How old are you"htmlcode">

Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
> ================================ RESTART ================================
> 
I'm Hongten,Welcome to my space!
########################################
Hello,I'm Hongten,my E-mail is hongtenzone@foxmail.com
Hello,I'm Hongten,my E-mail is hongtenzone@foxmail.com
########################################
Hi,Tom,How old are you?
########################################
Hello,I'm Hongten,This is a test message!
########################################
The value of PI is approximately 3.141592653589793.
The value of PI is approximately 3.141592653589793.
The value of PI is approximately 3.142.
Jack    ==>    4098
Sjoerd   ==>    4127
Dcab    ==>    7678
Jack: 4098; Sjoerd: 4127; Dcab: 8637678
> 




希望本文所述对大家Python程序设计有所帮助。