Python字符串全解

1.字符串大小写转换

1 def strChange(): 2 str = "niuXinLong@163.com" 3 print("原字符串：" + str) 4 print("字母写转换成小写：" + str.lower()) 5 print("字母写转换成大写：" + str.upper()) 6 print("大写转换成小写，小写转换成大写：" + str.swapcase()) 7 print("首字母大写：" + str.title())