Python If ... Else Python 条件和 If 语句 Python 支持来自数学的常用逻辑条件: 等于:a == b 不等于:a != b 小于:a < b 小于等于:a <= b 大于:a > b 大于等于:a >= b 这些条件能够以多种方式使用,最常见的是“if 语句”和循环。
In the above case Python evaluates each expression (i.e. the condition) one by one and if a true condition is found the statement(s) block under that expression will be executed. If no true condition is found the statement(s) block under else will be executed. In the following example,...
Python If...Else ❮ Prev Next ❯ Python is an interpreted, high-level, general-purpose programming language that is widely used by programmers worldwide. It is known for its simplicity and readability, making it an excellent choice for beginners and experienced programmers alike. One of the...
如果你在Python交互环境下敲代码,还要特别留意缩进,并且退出缩进需要多敲一行回车: 当if 语句判断表达式的结果为 True 时,就会执行 if 包含的代码块: 利用if ... else ... 语句,我们可以根据条件表达式的值为 True 或者 False ,分别执行 if 代码块或者 else 代码块。 注意: else 后面有个“:” 要避免嵌套...
for word, is_correct in join_asterisk(words):if is_correct:correct_words.append(word)else:incorr...
相信不少python初学者都会对ifname== ‘main‘:这句话感到疑惑,没错,我也是。 让我们来探讨探讨,查了网上的一些资料,以下总结一波: 首先,我们知道每一个python文件(.py)都有两种作用 ①直接运行; ②作为模块被别的.py文件引入 然后,name作为模块的内置属性,即.py文件的调用方式;如果是直接运行该文件,那么ifna...
Write a Python program to use the issuperset() method to check if one set contains all elements of another set.Write a Python program to compare two sets and return True if the first set is a superset of the second.Write a Python program to implement a function that takes two sets and...
ExampleGet your own Python ServerTest if a is greater than b, AND if c is greater than a:a = 200b = 33c = 500if a > b and c > a: print("Both conditions are True") Try it Yourself » Related Pages Python If...Else Tutorial If statement If Indentation Elif Else Shorthand If...
if condition: # 执行条件为真时的代码块 else: # 执行条件为假时的代码块 其中,condition是一个返回布尔值的条件表达式。如果condition为真,将执行条件为真时的代码块;如果condition为假,将执行条件为假时的代码块。 IF语句也可以使用多个elif子句来进行多个条件判断。这样可以根据不同的条件执行不同的代码块。
If statement, without indentation (will raise an error): a =33 b =200 ifb > a: print("b is greater than a")# you will get an error Try it Yourself » ❮ Python Glossary Track your progress - it's free! Log inSign Up