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Swift-5-流程控制
// Playground - noun: a place where people can playimport UIKit// For-In 循环// 1 遍历数字区间for index in 1...5 { println("\(index) times 5 is \(index)")}...
分类:编程语言   时间:2014-11-23 18:57:25    阅读次数:195
Swift-9-类和结构体
// Playground - noun: a place where people can playimport UIKit// 几个重要的概念Properties/Methods/Subscripts/Initialization/Extensions/Protocols/Inheritance...
分类:编程语言   时间:2014-11-23 18:56:31    阅读次数:242
Swift-2-基本操作符
// Playground - noun: a place where people can playimport UIKit// 基本运算符// 运算符有3种: 单目运算符(如 -a),二目运算符(如a+b)和三目运算符(a ? b : c)let (x, y) = (20, 30) // 分解元...
分类:编程语言   时间:2014-11-23 18:54:52    阅读次数:220
Swift-3-字符串和字符
// Playground - noun: a place where people can playimport UIKitvar someString = "some string literal value"someString += "another"// 初始化空字符串 2种方式,得出的结...
分类:编程语言   时间:2014-11-23 18:54:24    阅读次数:191
Swift-6-函数
// Playground - noun: a place where people can playimport UIKit// 定义和调用函数func sayHello(personName : String) -> String { let greeting = "hello, " + ...
分类:编程语言   时间:2014-11-23 18:53:31    阅读次数:262
Swift-1-基本概念
// Playground - noun: a place where people can play// 通过代码快速了解swift常用知识,需要一定object-c基础import UIKit// 声明常量let maximumNumberOfAttemps = 10// 声明变量var cur...
分类:编程语言   时间:2014-11-23 18:53:09    阅读次数:214
Swift-8-枚举
// Playground - noun: a place where people can playimport UIKit// 枚举语法enum SomeEnumeration { // enumeration definition goes here}// 定义一个枚举enum Comp...
分类:编程语言   时间:2014-11-23 18:50:48    阅读次数:197
Swift-4-数组和字典
// Playground - noun: a place where people can playimport UIKit// 数组 字典// 集合的可变性 赋值给var的集合是可变的mutable,赋值给let的集合是不可变的immutable// 数组 Array 等价于 [SomeTy.....
分类:编程语言   时间:2014-11-23 18:47:08    阅读次数:289
【LeetCode】Flatten Binary Tree to Linked List 解题报告
【题目】 Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / 2 5 / \ 3 4 6 The flattened tree should look like:...
分类:其他好文   时间:2014-11-23 17:35:12    阅读次数:131
POJ1745——Divisibility
Divisibility Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 10485   Accepted: 3738 Description Consider an arbitrary sequence of integers. One can place + or ...
分类:其他好文   时间:2014-11-23 15:59:50    阅读次数:204
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