Python 正则表达式查找一个大写字母后跟小写字母的序列

pythonserver side programmingprogramming更新于 2025/11/8 4:28:17

当需要使用正则表达式查找一个大写字母后跟小写字母的序列时，会定义一个名为‘match_string’的方法，该方法使用‘search’方法匹配正则表达式。在该方法之外，定义了字符串，并通过传递字符串来调用该方法。

示例

下面是相同的演示

import re

def match_string(my_string):

   pattern = '[A-Z]+[a-z]+$'

   if re.search(pattern, my_string):
      return('The string meets the required condition \n')
   else:
      return('The string doesnot meet the required condition \n')

print("字符串为:")
string_1 = "Python"
print(string_1)
print(match_string(string_1))

print("字符串为:")
string_2 = "python"
print(string_2)
print(match_string(string_2))

print("字符串为:")
string_3 = "PythonInterpreter"
print(string_3)
print(match_string(string_3))

输出

The string is :
Python
The string meets the required condition
The string is :
python
The string doesn’t meet the required condition
The string is :
PythonInterpreter
The string meets the required condition