在Jinja模板中,可以使用if语句来根据条件执行不同的操作。if语句可以包含多个条件,可以使用逻辑运算符(如and、or)来组合条件。 下面是一个示例代码: 代码语言:txt 复制 {% if condition1 %} do something {% elif condition2 %} do something else {% else %} do something else {% endif %} 在这个示...
【IF命令格式】IF [opt] [not] condition cmdAelsecmdB not关键字使IF命令支持逻辑运算符 “非”(NOT) condition不支持逻辑运算符 “与”(AND)和 “或”(OR) 在cmdA和cmdB中都支持支持IF命令嵌套,示例如下: :: 本示例包含汉字,如执行乱码,请使用 Notepad++ 把本文档转化成ANSI编码 【标注一】 ::demo.bat ...
if condition1 and condition2: # 执行条件1和条件2都满足时的代码 elif condition3 or condition4: # 执行条件3和条件4中至少一个满足时的代码 else: # 执行所有条件都不满足时的代码 在上述代码中,condition1、condition2、condition3和condition4是布尔表达式,可以根据实际需求进行替换。and表示逻辑与运算,...
sequence is a substitute for the switch or case statements found in other languages.可以有多个elif语句，关键词elif是else if的缩简写，用于缩减语句长度。if … elif … elif … 与其他语言的switch或case语句的作用相近。if condition_1:statement_block_1 elif condition_2:statement_block_2 else:statement...
Python if Statement Anifstatement executes a block of code only when the specified condition is met. Syntax ifcondition:# body of if statement Here,conditionis a boolean expression, such asnumber > 5, that evaluates to eitherTrueorFalse. ...
if answer == (num1 + num2): print("Correct!") correctCount += 1 else: print("Error!\nThe correct answer is "+str((num1 + num2))+".") elif choice == 1: #减法 #if num1 > num2,swap num2 with num1 if num1 < num2: ...
2.1.1 if 语句 if expression: expr_true_suite # if 语句 if 语句在条件表达式expression为真时,expr_true_suite才会执行。 单个if 语句中的 expression 条件表达式可以通过布尔操作符and,or 和 not 实现多重条件判断。 示例: if2>1andnot2>3:print('Correct Judgement!')# Correct Judgement!
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". ...
if语句可以用来实现条件执行 5.4.3 else子句 name = raw_input("What's your name ?")ifname.endswith('Gumby'):print'Hello, Mr.Gumby.'else:print'Hello, stranger.'#输出如下What's your name ? GumbyHello, Mr.Gumby. 5.4.4 elif语句
Run KeyWord If 使用关键字Run Keyword if 务必不要忘记在ELSE前单元格使用”…” Runs the given keyword with the given arguments, if `condition` is true. The given `condition` is evaluated similarly as with `Should Be True` keyword, and `name` and `*args` have same semantics as with `Run...