python中替换字符串的几种方法

• 占位符替换

  template = "hello %s , your website  is %s " % ("大CC","http://blog.me115.com")
  print(template)

• format函数替换

  template = "hello {0} , your website  is {1} ".format("大CC","http://blog.me115.com")
  print(template)

• F字符串替换 ```python

  !/usr/bin/env python3

name = ‘Peter’ age = 23

print(‘%s is %d years old’ % (name, age)) print(‘{} is {} years old’.format(name, age)) print(f’{name} is {age} years old’)

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# 模板方法替换
- 使用的是string类中的Template方法，
   - 支持通过关键字进行传值
   - 支持直接传字典进行自动拆包传值
```python
from string import Template
tempTemplate = Template("Hello $name ,your website is $message")
print(tempTemplate.substitute(name='大CC',message='http://blog.me115.com'))

from string import Template
tempTemplate  = Template("There $a and $b")
d={'a':'apple','b':'banbana'}
print(tempTemplate.substitute(d))