forループ

sample.go

package main

import "fmt"

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

func patternA() {
  sum := 0

  for i := 0; i < 10; i++ {
    sum += i
  }

  fmt.Println( sum )
}

func patternB() {
  sum := 0
  i := 0

  for ; i < 10; {
    sum += i
    i++
  }

  fmt.Println( sum )
}

func patternC() {
  sum := 0
  i := 0

  for i < 10 {
    sum += i
    i++
  }

  fmt.Println( sum )
}

func patternD() {
  sum := 0
  i := 0

  for {
    sum += i
    i++

    if i >= 10 {
      break
    }
  }

  fmt.Println( sum )
}