如果多种 case 匹配一个 case 值,则选择第一个 case( break 会跳出 switch 语句)。 如果未找到匹配的 case,程序将执行 default里的代码块。 代码块不需要加花括号 Switch case 使用严格比较(===),也就是值跟类型都得一致 可以多个 case匹配同一代码块 语法 switch 语句来选择多个需被执行的代码块之一。 语...
Syntax of the switch...case Statement switch (expression) { case value1: // code block to be executed // if expression matches value1 break; case value2: // code block to be executed // if expression matches value2 break; ... default: // code block to be executed // if expression...
Switch case syntax for Svelte ⚡️ sveltepreprocessswitch-casesveltejssveltekit UpdatedJun 23, 2023 TypeScript AlianeAmaral/JAVA_estudos_e_testes Star20 Code Issues Pull requests Testes próprios utilizando recursos do aprendizado de programação JAVA. ...
Thedefaultkeyword specifies some code to run if there is no case match. There can only be one default keyword in a switch. Although this is optional, it is recommended that you use it, as it takes care of unexpected cases. Syntax
Syntaxswitch(expression) { case n: code block break; case n: code block break; default: default code block } This is how it works:The switch expression is evaluated once. The value of the expression is compared with the values of each case. If there is a match, the associated block ...
Switch CaseSwitch Case Syntax:switch (VARIABLE) { case CONDITION : STATEMENT break case CONDITION : STATEMENT break case CONDITION : STATEMENT break default : STATEMENT }This has a similar function as the If condition - but it is more useful in situations when there is many possible values for...
结束,其他语句如CASE、LOOP等也是相同的。...UPDATE salary SET sex = IF(sex = 'm', 'f', 'm') 也可以利用条件语句,在搜索的时候,直接进行数据转换 select *,(CASE WHEN sex='1'...参考资料: 1、Mysql if case总结 2、Leetcode swap salary 3、select case when if 的一些用法 4、IF Synt...
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The switch statement literally switches over given blocks of code depending on whether a given case is matched. The syntax of switch is much different from that of if and else: switch (expression) { case match1: statements; break; case match1: statements; break; ... casematchN: statements...
break语句用于跳出switch语句,防止执行其他case的代码块。 对于数字或字母的查找,可以使用switch语句来实现。例如,我们可以编写一个程序来判断一个字符是数字还是字母: 代码语言:c 复制 #include <stdio.h> int main() { char ch = '7'; switch (ch) { case '0': case '1': case '2': case '3': ...