WebYou can have any number of case statements within a switch. Each case is followed by the value to be compared to and a colon. The constant-expression for a case must be the same data type as the variable in the switch, and it must be a constant or a literal. When the variable being switched on is equal to a case, the statements following that ... WebHow does the switch statement work? The expression is evaluated once and compared with the values of each case label. If there is a match, the corresponding statements after the matching label are executed. For …
switch case语句,switch case用法详解 - C语言中文网
WebSep 13, 2024 · 它的運行規則規則是,判斷比對的運算式的值,符合哪一種狀況 (case),就執行該case下方的動作。. 以上面的程式碼來看,用caseSwitch當作判斷式,當它是1的時候,輸出Case 1,當它是2或3的時候,輸出Case 2或3。. default表示,當值不符合任何一個case時,會直接跳到 ... WebMöchten wir viele Fälle unterscheiden und für jeden Fall unterschiedliche Aktionen ausführen, so können wir das mit vielen if Anweisungen oder mit einer switch case Anweisung erreichen. In die Klammern nach dem Schlüsselwort switch schreiben wir den Ausdruck, welchen wir auswerten möchten. Danach folgen mit dem Schlüsselwort case … cubitt and west horsham for sale
if 和 switch 語句 - 選取分支之間的執行路徑。 Microsoft Learn
http://kaiching.org/pydoing/c/c-switch.html Web72 人 赞同了该回答. gnu c扩展可以在case语句后面跟一个范围. Using and Porting the GNU Compiler Collection (GCC): C Extensions. You can specify a range of consecutive values in a single case label, like this: case low ... high: This has the same effect as the proper number of individual case labels, one for each integer value ... Web它的执行过程是:. 1) 首先计算“表达式”的值,假设为 m。. 2) 从第一个 case 开始,比较“整型数值1”和 m,如果它们相等,就执行冒号后面的所有语句,也就是从“语句1”一直执行 … cubitt and west horsham goole review