条件分岐：if

sample.go

package main

import (
  "fmt"
  "time"
)

func main() {
  patternA()
  patternB()
  // patternC()
}

const THRESHOLD = 30

func patternA() {
  i := time.Now().Second()

  if i > THRESHOLD {
    fmt.Println( "more than", THRESHOLD )
  } else {
    fmt.Println( "less than or equal to", THRESHOLD )
  }

  fmt.Println( "value:", i )
}

func patternB() {
  threshold1 := THRESHOLD + 10
  threshold2 := THRESHOLD - 10

  if i := time.Now().Second(); i > threshold1 {
    fmt.Println( "more than", threshold1 )
  } else if i > threshold2 {
    fmt.Println( "more than", threshold2 )
  } else {
    fmt.Println( "less", threshold1, threshold2 )
  }

  // fmt.Println( "value:", i )
}

// func patternC() {
//   i := time.Now().Second()

//   if i > THRESHOLD {
//     message := fmt.Sprintf( "more than %d", THRESHOLD )
//   } else {
//     message := fmt.Sprintf( "less than or equal to %d", THRESHOLD )
//   }

//   fmt.Println( message )
// }