#myString is not None AND myString is not empty or blank return False #myString is None OR myString is empty or blank return True 1. 2. 3. 4. 5. 6. 并且,与测试字符串是否不是None或NOR空或NOR空白完全相反: def isNotBlank (myString)
1 class str(basestring): 2 """ 3 str(object='') -> string 4 5 Return a nice string representation of the object. 6 If the argument is a string, the return value is the same object. 7 """ 8 def capitalize(self): 9 """ 首字母变大写 """ 10 """ 11 S.capitalize() -> str...
print(f"Default processing for type {type(value).__name__}: {value}") @process.register(int) def _(value: int): """处理整数类型""" print(f"Processing integer: {value * 2}") @process.register(str) def _(value: str): """处理字符串类型""" print(f"Processing string: {value.upp...
PIif__name__=="__main__":main()_name_代表当前模块的名字当我们再次运行“python area.py”时...
Theif __name__ == ‘__main__’conditional statement is aPython programmingconstruct that controls the execution of a script. When a Python script is run, the interpreter sets thename variableto the string ‘__main__‘ if the script is the main program being executed. If the file is be...
var2=0ifvar2:print("表达式条件为 false")print(var2)print("Good bye!")# python3 结果:Good bye! if分支结构的嵌套:其中,对齐的看作是一个整体运行 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # 例一 name='python'password='123'ifname=='python':ifpassword=='123':print('欢迎访问')...
Learn how to check if a string or a substring starts with a specific substring in Python. Step-by-step guide and examples included.
string = "hello world" suffix = "world" if string[-len(suffix):] == suffix: print("String ends with suffix") Output String ends with suffix To check if a string or a substring of a string ends with a specific suffix in Python, you can use the str.endswith() method. This meth...
if __name__ == '__main__': Test().f() #End 你在cmd中输入: C:>python Test.py Hello, World! 说明:"__name__ == '__main__'"是成立的 你再在cmd中输入: C:>python >>>import Test >>>Test.__name__ #Test模块的__name__ ...
装完python 这两个目录要加入环境变量 就可以在cmd输入pip 安装模块 前提要先把修改pip 源文件 内置函数的操作 查看当前环境变量命令 import sys print(sys.path) 如果导入文件 标红的话可以将这个文件目录加入环境变量,这时候就不会标红了 import random,string ...