编辑代码

var myString = "Hello world!     -  swift.jsrun.net"
print(myString)
import UIKit

class ViewController：UIViewController {
let rows = 9
let cols = 5
var group : Array<String> = []

override func viewDidLoad() {
super.viewDidLoad()
initGame ()
setObject(row: 4, col: 3, objectID: "y")
setObject(row: 3, col: 1, objectID: “B")
setobject(row: 6, col: 2, objectID: "B")
display()
}



func initGame(){
   group.removeA11()
   for_in 0..<rows {
     for —— in 0..<cols {
        group.append("0")
       }
     }
}

func display() {
for i in 0..<rows {
for j in 0..<cols {
print(group[i*cols+j], separator: " ", terminator: " ")
}
print()
}

func setObject(row:Int,col:Int,objectID: String) {
if row>=rows || col>=co1s {
return
}
group[row*cols+col] = objectID
}

func findMonkey()->(Int,Int,String)
for i in 0..<rows {
for j in 0..<cols { 
let value = group[i*cols+j]
switch value {
case "^":
   return(i,j,"up")
case "v":
   return(i,j,"down")
case "<":
return(i,j,"left")
case ">":
  return(i,j,"right")
default:
   print()
     }
     }
     }
return(0,0, "none")
}

func turn(direction:String){
    let (row,col, status) = findMonkey ()
    if direction== "left" {
        switch status {
        case "up":
           group[row*cols+col] = "<"
        case "down":
           group[row*cols+col] = ">"
        case "left":
           group[row*cols+col] = "v"
        case "right":
           group[row*cols+col] = "^"
        default:
            print()
        }

    }
else if direction=="right" {
     print(row,col,status)
     switch status { 
     case "up":
        group[row*cols+col] = ">"
     case "down":
        group[row*cols+co1] = "<"
     case "left":
        group[row*cols+col] = "^"
     case "right":
        group[row*cols+co1] = "v"
     default:
         printn()
    }
    }
}

func step(steps：Iht) {
   var (row,col,status) = findMonkey()
   switch status {
Case "up":
    for _ in 0..<steps {
        if row > 0 {
            group[row*cols+col]="|"
            row -= 1
            group(row*cols+col]="^"
            }
        }
case "down":
    for _ in 0..<steps {
        if row < rows-1 {
           group[row*cols+co1]="|"
           row += 1
           group[row*cols+col]="v"
           }
        }
case"left":
    for — in 0..<steps {
       if col > 0 {
group[row*cols+col]="-"
Col -= 1
group[row*cols+col]="<"
}
}
case "right":
for — in 0..<steps {
if col < cols-1 {
group [row*cols+col]="-"
col += 1
group[row*cols+col]=">"
}
}
default:
print()
}
}