使用switch 和多值 case 的 Golang 程序 在 Golang 中,我们可以使用 switch 和多值 case 来完成一个分支选择结构体的编写。下面,让我们来详细探讨一下。 switch语句 switch 语句和 C、C++ 中的类似,用于基于不同的条件执行不同的动作。 Golang 中 switch 语句常与 s
Matched first executes its code block, In this case, 1 is matched, and 1 matched is displayed to the console.switch expressioncan be enclosed withparenthesisandwithout parenthesisi.e. both switch number or switch (number) are allowed and valid codes. packagemainimport"fmt"funcmain() {number:=...
AI代码解释 // Easy case.ifcansemacquire(addr){return}...lockWithRank(&root.lock,lockRankRoot)...ifcansemacquire(addr){...unlock(&root.lock)break}...goparkunlock(&root.lock,waitReasonSemacquire,traceEvGoBlockSync,4+skipframes)// goparkunlock里的钩子里藏着unlock方法调用funcparkunlock_c(gp*...
AI代码解释 // the corresponding fasthttp codem:=func(ctx*fasthttp.RequestCtx){switchstring(ctx.Path()){case"/foo":fooHandlerFunc(ctx)case"/bar":barHandlerFunc(ctx)case"/baz":bazHandler.HandlerFunc(ctx)default:ctx.Error("not found",fasthttp.StatusNotFound)}}fasthttp.ListenAndServe(":80",m)...
Go switch statement It is a conditional statement in which we have multiway branches i.e. there are multiple options for the givencases. Theswitchis a way to execute multiple code blocks based on the value passed in thecaseexpression. In Golang, there are two types ofswitchstatements: ...
在类型switch中,cases包含与特殊注释的switch表达式的类型进行比较的类型。switch表达式在switch语句中只计算一次 表达式switch 在表达式switch中,将对switch表达式求值,并从左到右和从上到下求值不必为常量的case表达式;第一个等于switch表达式的表达式将触发执行关联case的语句;其他情况将被跳过 如果没有case匹配,并且存在...
func value(c Context, key any) any { for { switch ctx := c.(type) { case *value...
them have been completed successfully should the function return.// Remember that workers may fail, and that any given worker may finish// multiple tasks./// TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO//switch phase {case mapPhase:mr.scheduleMap()case reducePhase...
注意: 唯一的区别是,由简短语句声明的变量仅在switch块内部可用。 4.3.2 case情况下多表达式 通过用逗号将多个表达式分隔开,可以包含多个表达式。 packagemainimport("fmt")funcmain(){ dayOfWeek :="2"switchdayOfWeek {case"1","2","3","4","5"://multiple expressions in casefmt.Println("上班日")defa...
For cases when you need to add multiple string translations depending on plural values, you need to add special calls to configure that in your translation catalogs. The sub-package golang.org/x/text/feature/plural exposes a function called SelectF that is used to define multiple linguistic plu...