// Playground - noun: a place where people can play import UIKit //Step 1. var pwCharacters = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","1","2","3","4","5","6","7","8","9","0","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","!","@","#","$","%","^","&","*"] //Step 2. func randomPassword(passwordLength: Int) -> String { var password = "" var unsignedArrayCount = UInt32(pwCharacters.count) for var i = 0; i < passwordLength; i++ { var unsignedRandomNumber = arc4random_uniform(unsignedArrayCount) var randomNumber = Int(unsignedRandomNumber) password += pwCharacters[randomNumber] } return password } //Step 3 //任意生成1000位密码 randomPassword(1000) //任意生成15密码 var password = "\(randomPassword(5))-\(randomPassword(5))-\(randomPassword(5))"
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