Shulou(Shulou.com)06/02 Report--

This article mainly introduces how to use the for loop statement in Go language, which has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

overview

A for loop is a loop control structure that can execute a specified number of loops

syntax

the first

for {} //wireless loop

the second

for conditional statement {}

a third

for initial statement; conditional statement; post-iteration statement {}

a fourth

for key,value:=range Expression/variable {} Note

Omitting the initial condition is equivalent to while the loop body must be enclosed by { }. The initialization statement and the post-statement are optional. If only the conditional expression is left, then the two semicolons can also be omitted.

Example 1 infinite loop, read file func readFile() { //bufio, io, os packages need to be imported f, err := os.Open("abc.txt") if err != nil { fmt.Println("open error") return } defer f.Close() br := bufio.NewReader(f) for { s, _, c := br.ReadLine() if c == io.EOF { break } fmt.Println(string(s)) }} Example 2 Print multiplication table for i := 1; i < 10; i++ { for j := 1; j

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.