结构体类型 type 名字 struct{},下面这段是github.com/urfave/cli包里的代码,声明了一个App的结构体类型
代码语言：javascript复制type App struct {
// The name of the program. Defaults to path.Base(os.Args[0])
Name string
// Full name of command for help, defaults to Name
HelpName string
// Description of the program.
Usage string
// Text to override the USAGE section of help
UsageText string
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// Description of the program
Description string
// List of commands to execute
Commands []*Command
// List of flags to parse
Flags []Flag
}点操作符也可以和指向结构体的指针一起工作,如果赋给的是个指针,那也可以直接用点来操作 type User struct{ Name string } user:=&User{Name:"taoshihan"} fmt.Println(user.Name)
cliApp := cli.NewApp() cliApp.Name = "gocron" cliApp.Usage = "gocron service" 这个cli包下的NewApp方法返回的是*App类型,因此cliApp就是可以直接点操作里面的成员了
代码语言：javascript复制 return &App{
Name: filepath.Base(os.Args[0]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
Version: "0.0.0",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Writer: os.Stdout,
}
