Swift学习：11.控制流

outFor:for ain1...5{

for iin1...10{

if i ==2{

break outFor

}

print("\(i)")

}

}

note：switch case 中可以使用fall through贯穿

5.给数组添加序号

5.示例代码

forvar i =0 ; i <100 ; i++ {

}

forvar index =0; index <10; ++index{

}

var i =1;

var j =2;

let base =3

let power =10

var answer =1

for_in1...power{

answer = answer * base

}

println("\(answer)")

let finalSquare =25

var board = [Int](count:finalSquare +1,repeatedValue:0)

//var board = Array(count: finalSquare,repeatedValue: 0)

board[03] = +08;board[06] = +11;board[09] = +09;board[10] = +02

board[14] = -10;board[19] = -11;board[22] = -02;board[24] = -08

var square =0

var DiceRoll =0

/*

while square < finalSquare{

// 掷骰子

if ++DiceRoll == 7{

DiceRoll = 1

}

square += DiceRoll

if square < board.count{

square += board[square]

}

*/

gameLoop:whilesquare !=finalSquare{

if ++DiceRoll ==7{

DiceRoll =1

}

switchsquare +DiceRoll{

casefinalSquare:

break gameLoop

caselet numberwhere number >finalSquare:

conTinue gameLoop

default:

square += DiceRoll

square += board[square]

}

}

println("game over")

let someCharactor:Character ="u"

switch someCharactor{

case "a","e","i","o","u":

println("someCharactor is yuanyin")

case "b","c":

println("someCharactor is fuyin")

default:

println("someCharactor is not a charactor")

}

let somePoint = (1,1)

switch somePoint{

case (0,0):

println("Origin")

case (0,_):

println("y轴")

case (_,0):

println("x轴")

case (-2...2,-2...2):

println("正方形内")

default:

正方形外")

}

switch somePoint{

caselet (x,y)where x == y:

println("x=y")

caselet (x,y)where x == -y:

println("x=-y")

caselet (x,y):

println("other")

}