Swift 教程《The Swift Programming Language》来写
let emptyArray = String[]() 时会提示“Array types are now written with the brackets around the element type”错误,...
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其他好文 时间:
2014-11-03 17:48:41
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230
"Bored? Let's play table football!"
The table football is played on a rectangular table, usually contains m rows of players which are plastic, metal, wooden, or sometimes carbon-fibre figures mounted...
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其他好文 时间:
2014-11-03 14:35:59
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316
Hello,We are writing to let you know that we have removed your selling privileges and placed a temporary hold on any funds in your Marketplace Payment...
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其他好文 时间:
2014-11-02 12:26:14
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149
题目地址:HDU 1824
这题可以把每队的两个队员看成一个,这样就是2-sat水题了。。。
代码如下:
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
using namespace std;
#define LL _...
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其他好文 时间:
2014-11-01 19:16:14
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175
Objective-C的@selector在Swift中用Selector结构体来替代。在Swift中,我们可以使用字符串常量来构造Selector,例如:
let mySelector: Selector = "tappedButton:"
因为字符串最终会被自动转换成Selector。下面是一个例子:
// Swift
myButton.addTarget(self, ac...
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编程语言 时间:
2014-11-01 13:29:59
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215
1.元组类型let cat =(age:4,weight:2,cocle:"black",beauty :true)if(cat.beauty){ printf("我就不告诉你我的小猫有 \(cat.age)岁,体重\(cat.weight)斤");}else{ printf("过来让我砍死 ...
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编程语言 时间:
2014-11-01 13:21:46
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178
变量使用var 来声明,常量是所有let ,变量名没什么限制 中午表情都可以 ,一般还是使用英文var str = "luoshuai " //swift语句后面不需要;let PI = 3.14159var age = 0 ,height =0也可以变量或者常量的类型 var 变量名称: ...
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编程语言 时间:
2014-11-01 11:26:10
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173
// Playground - noun: a place where people can playimport UIKitvar str = "Hello, playground"// color与=号之间必须有个空格let colors =[ "Air Force Blue":(red:...
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编程语言 时间:
2014-11-01 09:43:28
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206
在Swift中,当我们想要截取某个字符串时,方法如下:let carNumber = "沪A12345"let startIndex = advance(userCar.carPlateNumber.startIndex, 0)let endIndex = advance(startIndex, 1...
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移动开发 时间:
2014-10-31 18:57:23
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232
linux 下shell加法操作总结: #!/bin/bash n=1;echo -n "$n " let "n = $n + 1" echo -n "$n " : $((n = $n + 1)) echo -n "$n " (( n = n +1 )) echo -n "$n " : $[ n = $n +1 ] echo -n "$n " n=$[ $n + 1 ] e...
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系统相关 时间:
2014-10-31 16:07:31
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367