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swift 代码添加image
let image_ElectricianBtn = UIImage(named: "ElectricianBtn") let vimage_ElectricianBtn = UIImageView(image: image_ElectricianBtn) vimage_ElectricianBtn ...
分类:编程语言   时间:2016-05-13 11:26:28    阅读次数:309
initializer for conditional binding must have optional type not AVAudioPlayer
if let buttonBeep = self.setupAudioPlayerWithFile("ButtonTap", type: "wav") { self.buttonBeep = buttonBeep } if let secondBeep = self.setupAudioPlayer ...
分类:其他好文   时间:2016-05-13 07:33:00    阅读次数:307
【CodeForces】C. Drazil and Factorial
Problem hereProblemDrazil is playing a math game with Varda.Let’s define for positive integer x as a product of factorials of its digits. For example, First, they choose a decimal number a consisting...
分类:其他好文   时间:2016-05-13 03:10:26    阅读次数:115
swift 可选值
// 可选值 let cities_ = ["Paris": 2241, "Madrid": 3165, "Amsterdam": 827, "Berlin": 3562] //  madridPopulation 的类型是可选类型 Int?,而非 Int。一个 Int? 类型的值是 Int 或者特//殊的 “缺失” 值 nillet madridPopulation: Int? = citi...
分类:编程语言   时间:2016-05-13 02:23:40    阅读次数:205
Common Lisp入门笔记(二)赋值与输入输出
摘自 《Lisp语言- 陈光喜》 一、赋值 (1)let Lisp中使用let来完成局部变量的定义。其形式为:(let  ((var1 exp1)(var2 exp2)…(varn expn))...
分类:其他好文   时间:2016-05-13 02:23:27    阅读次数:216
poj2553——The Bottom of a Graph(强连通分量)
DescriptionWe will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called vertices (or nodes). Let E be a subset of the Cartesian prod...
分类:其他好文   时间:2016-05-13 00:21:56    阅读次数:118
hdu2509
Be the Winner Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2945 Accepted Submission(s): 1628Problem Description Let’s consider m apples...
分类:其他好文   时间:2016-05-12 17:10:27    阅读次数:234
Binary Apple Tree_解题报告_URAL1018_树状dp
Description Let's imagine how apple tree looks inbinary computer world. You're right, it looks just like a binary tree, i.e. anybiparous branch splits up to exactly two new branches. We will enumerat...
分类:移动开发   时间:2016-05-12 17:01:57    阅读次数:229
iOS quartzCore第五章——CAShapeLayer画各种图形 结合UIBezierPath
CAShapeLayer 是 CALayer 的子类,但是比 CALayer 更灵活,可以画出各种图形,当然,你也可以使用其他方式来画,随你。 杂谈 在 CAShapeLayer 中,也可以像 CALayer 一样指定它的 frame 来画,就像这样: 1 2 3 4 5 let layer = CAShapeLayer() layer.fra...
分类:移动开发   时间:2016-05-12 14:26:54    阅读次数:175
欢迎使用CSDN-markdown编辑器
设计模式-工厂方法模式算是看书的笔记并非原创,总结:工厂方法模式定义Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses 定义一个用于...
分类:其他好文   时间:2016-05-12 14:07:15    阅读次数:140
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