需要判断的条件很少时,一般不超过5个 使用switch-case: 能用则用 参考资料 Advantage of switch over if-else statementIf…else…if vs switch…case, difference and usage?switch vs if else
if(condition1) {//Body of if }elseif(condition2){//Body of if }elseif(condition3){//Body of if }else{//default if all conditions return false } Inswitch case, the expression in the switch statement decides which case to execute along with a break statement after each case. This all...
我们可以将其转换为switch语句: 代码语言:txt 复制 let value = 'A'; switch (value) { case 'A': console.log('Value is A'); break; case 'B': console.log('Value is B'); break; case 'C': console.log('Value is C'); break; default: console.log('Unknown value'); } ...
Re: If Statements vs Select Case Statements Wow, thank you so much for this clear explanation. So, with this said... If we can write everything with the If/Elseif/Else statement, is there any use for the Case statement? For the instances where you can write a Case statement, does...
ES.70: Prefer a switch-statement to an if-statement when there is a choice ES.70:进行选择时,switch语句比if语句好 Reason(原因) Readability. 可读性 Efficiency: A switch compares against constants and is usually better optimized than a series of tests in an if-then-else chain. ...
statement(s) else: # 如果条件为假,则执行这里的代码 statement(s) “` 3. if-elif-else语句:if-elif-else语句可以根据多个条件的真假来执行不同的代码块。它先判断第一个条件,如果条件为真,则执行对应的代码块;如果条件为假,则继续判断下一个条件,以此类推。最后,如果所有条件都为假,则执行else代码块。
case statement, by visiting theSwitch Case Implementation. I know it feels odd because even though Python has been around for a long while now,"switch case in Python "is still a popular search term on Google. So, if Python does not have a switch statement, what do we have for ...
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switch statementis used to control the execution flow within a block of code. switch expressionis typically used in contexts of value return and value assignment, often as aexpression-bodied members. aswitch expressioncase section cannot be empty, aswitch statementcan. ...
switch statementis used to control the execution flow within a block of code. switch expressionis typically used in contexts of value return and value assignment, often as aexpression-bodied members. aswitch expressioncase section cannot be empty, aswitch statementcan. ...