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leetcode First Missing Positive hashset简单应用
1 public class Solution { 2 public int firstMissingPositive(int[] A) { 3 HashSet hash=new HashSet(); 4 int count=0; 5 int...
分类:其他好文   时间:2014-07-15 08:58:16    阅读次数:239
MVC实现上传图片的方法
Form提交时,须注意form需要添加属性enctype="multipart/form-data",否则Request.Files.Count=0,无法上传图片。cshtml代码:cs代码: public bool ValidateImg(string imgName) ...
分类:Web程序   时间:2014-07-15 08:40:39    阅读次数:215
C# 当前程序所有线程
using System.Linq;var threads = System.Diagnostics.Process.GetCurrentProcess().Threads;var count = threads.Count;var actived = threads.Cast().Where(t ...
分类:编程语言   时间:2014-07-14 22:31:10    阅读次数:218
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
read函数返回值始终为1
部分程序如下:while(count=read(fd_s,buf,512)>0)printf("count=%d\n",count);write(fd_d,buf,count);打印出来的count始终1,原因:运算符优先级的问题。改为:while((count=read(fd_s,buf,512)...
分类:其他好文   时间:2014-07-14 14:54:25    阅读次数:194
ruby 变量和方法
def say_goodnight(name) result ="Good night ." +name return resultenddef say_goodmorning(name) result ="Good morning .#{name}" return resultendde...
分类:其他好文   时间:2014-07-14 14:14:34    阅读次数:189
[LeetCode] Count and Say
The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off as"tw...
分类:其他好文   时间:2014-07-13 22:53:48    阅读次数:269
oracle 常用语句
1.decode函数(小版本的casewhen)selectdecode(pd.discount_id,null,‘‘,‘购买‘||pd.product_count||‘个,‘||pd.product_discount_rate||‘折优惠‘)asdiscountfromb2b_productdrightjoinb2b_product_hotphond.product_id=ph.product_idleftjoinb2b_dictionaryaond.RRO_MARQUE=a...
分类:数据库   时间:2014-07-13 15:18:14    阅读次数:360
磁盘自动分区
#!/bin/bash##########################################Function:autofdisk#Usage:bashauto_fdisk.sh#Author:Customerservicedepartment#Company:AlibabaCloudComputing#Version:2.0#########################################count=0tmp1=/tmp/.tmp1tmp2=/tmp/.tmp2>$tmp1..
分类:其他好文   时间:2014-07-13 15:03:56    阅读次数:299
批量创建用户和删除用户
批量创建用户read-p"请输入用户名的前缀:"userread-p"请输入用户的数目:"numcount=0if(($num>10))thenecho"最多只能同时新建10个用户"elseforiin$(seq$num)doifuseradd$user$ithencount=$(($count+1))echo"用户$user$i已经创建成功"fidoneecho"一共新建的用户数:$count个"fi..
分类:其他好文   时间:2014-07-13 14:26:38    阅读次数:230
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