5.Go by Example: For

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。Go by Example: For


for is Go’s only looping construct. Here are three basic types of for loops.

The most basic type, with a single condition.

A classic initial/condition/after for loop.

for without a condition will loop repeatedly until you break out of the loop or return from the enclosing function.

package mainimport "fmt"func main() {     i := 1    for i <= 3 {        fmt.Println(i)        i = i + 1    }     for j := 7; j <= 9; j++ {        fmt.Println(j)    }    for {        fmt.Println("loop")        break    }}

譯：
for 關鍵字是在go語言中唯一一個迴圈結構，下面的就是for迴圈的三個基本類型結構

最基本的是一個單條件

一個是 初始值/條件/然後的自身處理條件對於 for迴圈

for 迴圈對於沒有條件的將會一直迴圈直到break出迴圈，或者在外圍函數返回

package mainimport "fmt"func main() {i := 1for i <= 3 { //相當於while迴圈fmt.Println(i)i = i + 1}for j := 7; j <= 10; j++ { //傳統的for迴圈fmt.Println(j)}for { //類似於 do。。。while迴圈fmt.Println("loop")break}}

運行結果
go run for.go
1
2
3
7
8
9
10

loop

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