In-depth understanding of jump statements in Go language

Jump statement is a common flow control statement in programming languages, used to change the order of program execution. In Go language, there are three main types of jump statements:break,continueandgoto. This article will delve into the specific usage of these jump statements in the Go language, and attach corresponding code examples.

1. break statement

breakstatement is used to jump out of the current loop or the execution of theswitchstatement and terminate the subsequent code block. The following is an example of using thebreakstatement in aforloop:

package main import "fmt" func main() { for i := 1; i <= 5; i++ { if i == 3 { break } fmt.Println(i) } }

In the above code, when the value ofiis equal to 3, execute Thebreakstatement breaks out of the loop, so only1and2will be output.

2. The continue statement

continuestatement is used to skip the remaining code in the current loop and directly enter the next cycle. The following is an example of using thecontinuestatement in aforloop:

package main import "fmt" func main() { for i := 1; i <= 5; i++ { if i == 3 { continue } fmt.Println(i) } }

In the above code, when the value ofiis equal to 3, execute Thecontinuestatement skips the code in the current loop and directly enters the next cycle, so only1,2,4will be output. and5.

3. goto statement

The gotostatement can unconditionally transfer to another location in the program, usually used to jump to a label. The following is an example of using thegotostatement:

package main import "fmt" func main() { i := 1 start: fmt.Println(i) i++ if i <= 5 { goto start } }

In the above code, the loop output1to ## is realized through thegoto startstatement. #5effect. It should be noted that in Go language, the use ofgotostatements should be avoided as much as possible to avoid problems with code readability and maintainability.

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