if condition: statement1 statement2 statement3 # 这里的缩进不匹配,导致IndentationError while condition: statement1 statement2 statement3 # 这里使用了制表符进行缩进,导致IndentationError 对于Python语言中的IndentationError错误,可以参考腾讯云提供的Python开发文档和Python SDK文档,以获取更多有关Python编程...
Here, we haven't used indentation after theifstatement. In this case, Python thinks ourifstatement is empty, which results in an error. Python if...else Statement Anifstatement can have an optionalelseclause. Theelsestatement executes if the condition in theifstatement evaluates toFalse. Syntax...
Notice the indentation inside the if block: a =33 b =200 ifb > a: print("b is greater than a") Try it Yourself » Example 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 ...
如果"condition_1" 为 True 将执行 "statement_block_1" 块语句 如果"condition_1" 为False,将判断 "condition_2" 如果"condition_2" 为 True 将执行 "statement_block_2" 块语句 如果"condition_2" 为False,将执行"statement_block_3"块语句 Python 中用elif代替了else if,所以if语句的关键字为:if – ...
python这样设计的理由是为了程序的好看和简单 总结: 语句前面四个空格的缩进来表示隶属关系,python中不能随便缩进 if<条件1>: statementelif<条件2>: statementelif<条件3>: statementelse: statement whilei>0: x=2y=3whilex==2:print("hello")
2)indentation/ident缩进(python特色点): • 建议不使用tab,用4个英文空格 • 缩进在python表示意义,同逻辑层级同缩进层级。 3) if statement if条件True,if语句直接结束;False,按顺序进入下一条if语句 #one-way decision if condition: statement #two-way decision if condition: statement1 else: statement...
1. Indentation Errors Python uses indentation to define blocks of code. Missing indentation will cause an error. Example: ifTrue:print("This will cause an error!")# IndentationError Copy Fixed Example: ifTrue:print("This will not cause an error!") ...
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 » Elif Theelifkeyword is Python's way of saying "if the previous conditions were not true, then try this condition". ...
Python当中的判断语句非常简单,并且Python不支持switch,所以即使是多个条件,我们也只能罗列if-else。 # Let's just make a variable some_var = 5 # Here is an if statement. Indentation is significant in Python! # Convention is to use four spaces, not tabs. ...
if Statements Perhaps the most well-known statement type is the if statement. For example:>>> x = int(input("Please enter an integer: "))Please enter an integer: 42 >>> if x < 0:... x = 0 ... print('Negative changed to zero')... elif x == 0:... print('Zero...