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...
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else: statement(s)else: statement(s) 其中,condition1和condition2是要检测的条件,statement(s)是要执行的语句块。如果condition1为真,则检测condition2,如果condition2为真,则执行if语句块中的代码,否则执行else语句块中的代码。如果condition1为假,则执行else语句块中的代码。 示例代码 x = 10 y = 5if x ...
Understand Python if-else statements easily with this comprehensive guide. Discover how to use conditional logic to control the flow of your programs.
在Python中,if语句的基本语法是:if condition:statement(s)如果条件condition为真,则执行if语句后面缩进的语句块。例如:if x <0:pass 如果x小于0,则执行空语句pass。2、多重条件 if语句可以与elif和else语句一起使用,实现多重条件判断。例如:if x<0:print('x是负数')elif x==0:print('x是零')else...
amountamountamountdiscountamountamountdiscountamountamountdiscountamountelse:discount=0print('Payable amount = ',amount-discount) The output of the above code is as follows − Amount: 2500 Payable amount = 2375.0 Print Page Previous Next Advertisements...
if..elif..else The if-elif-else statement in Python is used to conditionally execute a statement or a block of statements. It helps control the flow of execution based on different conditions, evaluating expressions as either true or false. ...
if username in allowed_users: print "Access granted" else: print "Access denied" Python If statement Code Block To get an easy overview of Pythons if statement code block if: [do something] ... ... elif [another statement is true]: [do...
else: return 'Low'Apply the Function to the DataFrame: df['Category'] = df.apply(categorize, axis=1) Print the Result: print(df) ExplanationImporting Pandas: First, we import the pandas library. Creating a Sample DataFrame: We create a sample DataFrame df with columns 'A' and 'B'. Def...
python if else elif statement name = input('what is your name?') if name.endswith('zd'): print("hello panzidong") name = input('what is your name?') if name.endswith('zd'): print("hello panzidong") else: print("hello other")...