package flag package flag import "flag" flag包实现了命令行参数的解析。 要求: 使用flag.String(), Bool(), Int()等函数注册flag,下例声明了一个整数flag,解析结果保存在*int指针ip里: import "flag" var ip = flag.Int("flagname", 1234, "help message for flagname") 如果你喜欢,也可以将flag绑定...
Unlike the flag package, a single dash before an option means something different than a double dash. Single dashes signify a series of shorthand letters for flags. All but the last shorthand letter must be boolean flags or a flag with a default value ...
packagemainimport("fmt""github.com/posener/cmd")funcmain() {// Should be defined in global `var`.var(root=cmd.New()// Define a variable that will hold positional arguments. Create the `ArgsStr` object with// cap=2 to ensure that the number of arguments is exactly 2.args=make(cmd....
Go语言内置flag包实现了命令行参数的解析,flag包使得开发命令行工具更为简单。 os.Args 如果你只是简单的想要获取命令行参数,可以像下main的代码示例一样使用os.Args来获取命令参数。 packagemainimport("fmt""os")//os.Args demofuncmain(){//os.Args是一个[]stringiflen(os.Args) >0{forindex, arg :=ra...
从目前的情况来看，现有的package不会受到太大的影响。大部分公司没有采取调薪的策略，而是hiring freeze...
packageflagx//存储命令行传过来的文件路径varFlagFile string funcinit(){//注册命令行的flagfile参数flag.Var(&FlagFile,"flagfile","")}//在Parse函数中调用,将解析到的命令行参数打印出来funcvisitFlag(f*flag.Flag){fmt.Println(f.Name+"="+f.Value.String())}funcParse()error{//先解析命令行中的...
package main import ( "flag" "fmt") var flagname = flag.String("flagname", "default", "description") func main() { flag.Parse() fmt.Println(*flagname)} 在idea 命令行输入: go run main.go -flagname value 则会输出输入的值"value"。 可以定义多个 flag,在解析时会对应解析。 3. flag ...
packagemainimport("flag""fmt")funcmain(){varhost stringvarport intvarverbor boolvarhelp bool// 绑定命令行参数与变量关系flag.StringVar(&host,"H","127.0.0.1","ssh host")flag.IntVar(&port,"P",22,"ssh port")flag.BoolVar(&verbor,"v",false,"detail log")flag.BoolVar(&help,"h",false...
PackageInfoFlagsLong PackageInstaller PackageInstaller.InstallConstraints PackageInstaller.InstallConstraints.Builder PackageInstaller.InstallConstraints.InterfaceConsts PackageInstaller.InstallConstraintsResult PackageInstaller.InstallConstraintsResult.InterfaceConsts PackageInstaller.PreapprovalDetails PackageInstaller.PreapprovalDetails...
Unlike the flag package, flags can be interspersed with arguments anywhere on the command line before this terminator. Integer flags accept 1234, 0664, 0x1234 and may be negative. Boolean flags (in their long form) accept 1, 0, t, f, true, false, TRUE, FALSE, True, False. Duration ...