def func(): print(count) # No error, function can find global variable 'count' func() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 二、关键字 global nonlocal 1.global 功能一:在局部作用域声明一个全局变量。 # 在局部作用域声明一个全局变量, name = 'alex' def func()...
str=' python String function ' print '%s strip=%s' % (str,str.strip()) str='python String function' print '%s strip=%s' % (str,str.strip('d')) 按指定字符分割字符串为数组:str.split(' ') 字符串编码和解码的函数: S.encode([encoding,[errors]]) # 其中encoding可以有多种值,比如gb23...
format_string = "Hello, my name is {name} and I am {age} years old."greeting = format_string.format(name=name, age=age)print(greeting)# Output: Hello, my name is Bob and I am 30 years old.# 使用冒号指定格式化选项format_string = "Value: {:.2f}"value = 3.1415926output = format...
去两边字符串:str.strip('d'),相应的也有lstrip,rstrip str=' python String function ' print '%s strip=%s' % (str,str.strip()) str='python String function' print '%s strip=%s' % (str,str.strip('d')) 6.按指定字符分割字符串为数组:str.split(' ') 默认按空格分隔 str='a b c de' ...
首先,我们需要创建一个函数,并设置一个字符串形参。在Python中,可以使用def关键字来定义一个函数,然后在函数的括号中设置形参。例如,我们可以创建一个名为string_function的函数,该函数接受一个名为string的字符串形参。 defstring_function(string):# 在这里编写函数的具体代码 ...
Help on built-in function join: join(iterable, /) method of builtins.str instance Concatenate any number of strings. The string whose method is called is inserted in between each given string. The result is returned as a new string. Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab...
Function Description MS EXCEL FUNCTION mystring[:N] Extract N number of characters from start of string. LEFT( ) mystring[-N:] Extract N number of characters from end of string RIGHT( ) mystring[X:Y] Extract characters from middle of string, starting from X position and ends with Y MID...
Python 入门系列 —— 11. string 常用方法介绍 python 自带了一些 function 函数可用在 string 操作上。 大写化 string 可以使用upper()函数将字符串大写化。 a="Hello, World!"print(a.upper())PS E:\dream\markdown\python>&"C:/Program Files (x86)/Python/python.exe"e:/dream/markdown/python/app/...
/usr/bin/python# -*- coding: UTF-8 -*-#可写函数说明defprintme(str):"打印任何传入的字符串"printstrreturn#调用printme函数printme(str="My string") 以上实例输出结果: Mystring 下例能将关键字参数顺序不重要展示得更清楚: 实例(Python 2.0+)...
The string functionlen()returns the number of characters in a string. This method is useful for when you need to enforce minimum or maximum password lengths, for example, or to truncate larger strings to be within certain limits for use as abbreviations. ...