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Swift的一些问题
一些Swift的问题列表:How to use a Objective-C #define from SwiftHow do I convert an NSDictionary to a Swift Dictionary?Swift: 'var' declaration without getter...
分类:其他好文   时间:2014-07-14 23:20:20    阅读次数:205
Dictionary as a set of counters
Suppose you are given a string and you want to count how many times each letters appears. There are several ways you do it:You could create 26 variabl...
分类:其他好文   时间:2014-07-14 21:55:02    阅读次数:247
How to insert a character into a NSString
How do I insert a space to a NSString.I need to add a space at index 5 into:NString * dir = @"abcdefghijklmno";To get this result:abcde fghijklmnowith...
分类:其他好文   时间:2014-07-14 21:12:21    阅读次数:175
How to check if NSString begins with a certain character
How to check if NSString begins with a certain characterHow do you check if an NSString begins with a certain character (the character *).The * is an ...
分类:其他好文   时间:2014-07-14 20:51:24    阅读次数:177
shell编程(十二)--- 添加用户示例
[root@Server3Learn]#catuseradd-final.sh #!/bin/bash # DEBUG=0 ADD=0 DEL=0 help(){ echo"Usage:$(basename$0)-v|--verbose|--adduser1,user2,...|--deluser1,user2,...|-h|--help" } while[$#-ne0] do case$1in -h|--help) help exit0 ;; -v|--verbose) DEBUG=1 shi..
分类:其他好文   时间:2014-07-14 16:25:52    阅读次数:230
Remove Duplicates from Sorted Array
描述 Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in ...
分类:其他好文   时间:2014-07-14 13:46:43    阅读次数:229
2014 Super Training #9 E Destroy --树的直径+树形DP
原题: ZOJ 3684http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3684题意: 给你一棵树,树的根是树的中心(到其他点的最远距离最小)。现在你要破坏所有叶子节点到根节点的连通,每条边破坏都需要一定能量。你有一个能量为p...
分类:其他好文   时间:2014-07-13 23:52:11    阅读次数:367
Do what you love VS Love what you do
------------------------------------------------------转自36氪做你所爱还是爱你所做? 激情不是你追随的东西,而是当你努力工作、变得对世界有价值之后会追随你的东西.职业热情罕有 大家很容易把兴趣爱好(hobby)跟能取得职业或商业成就的那种热.....
分类:其他好文   时间:2014-07-13 20:17:38    阅读次数:150
我是歌手
lsname.txt&>/dev/null&&name=($(catname.txt))||name=($(catlist.txt))echo"欢迎来到我是歌手第$(catcount.txt)季,还有${#name[@]}位参赛歌手,请按任意键开始选择"echo"****这次为大家献唱的是谁呢?我们一起倒数3秒钟****"second=3foriin$(seq$second-11)do..
分类:其他好文   时间:2014-07-13 15:00:36    阅读次数:209
Java语言的基础知识3
第四章1、sum+=x++;的语句等价于sum=sum+x;和x=x+1;两条语句2、do....while循环语句与while循环语句类似。他们之间的差别是while语句为先判断条件是否成立再执行循环体,而do...while循环语句是先执行一次循环体,在判断条件是否成立。也就是说do....while循环语句至少执行一次..
分类:编程语言   时间:2014-07-13 14:18:10    阅读次数:216
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