Swift 2.0 Syntax Loop

Source: Internet
Author: User

: Playground-noun:a place where people can play

Import UIKit

/*:

For Loop

* basic usage and OC consistency

* conditional expression must be a value of type bool

* The conditional expression () can be omitted

* in OC if there is only one statement in {} , then {} can be omitted , and Swift cannot

*/

For var i = 0; i < ten; i++

{

Print(i)

}

/*:

Interval

Semi-closed interval : 0..<10 contains head not containing tail

Closed interval : 0...10 contains header containing tail

*/

For i in 0... Ten

{

Print(i)

}

/*:

While Loop

* basic usage and OC consistency

* conditional expression must be a value of type bool

* The conditional expression () can be omitted

* in OC if there is only one statement in {} , then {} can be omitted , and Swift cannot

*/

var num = 0

While num <

{

print(num)

num+ +

}

/*:

Repeat while Loop

* basic usage and OC consistency

* conditional expression must be a value of type bool

* The conditional expression () can be omitted

* in OC if there is only one statement in {} , then {} can be omitted , and Swift cannot

*/

var value = 0

repeat{

Print (value)

value++

}while value <

Swift 2.0 Syntax Loop

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