#PHP
Postgresql DB的访问PHP类
/** * The generic DB access Class, Entry of all DB Access * Only PG is supported -- 201210…
#SQL
设置SQL的Agent代理的登陆名和密码问题
-- Copyright (C) 1991-2002 SQLDev.Net -- -- file: sp_sqlagent_set_connection.sql -- descr.…
#Objective-C
iOS- NSTimeInterval获取时间间隔
想在程序 开始或者进入某个界面,到结束程序或退出某个界面,获取到这个持续时间.获取到这个时间还需要转化一个取得时分秒. startTime == 全局变量 NSString *st…
#Objective-C
ios常用动画
使用block 使用前需引入QuartzCore.framework, 并在相关文件中加入 #import"QuartzCore/QuartzCore.h" 定…
#PHP
使用 PHP 限制下载速度
// local file that should be send to the client $local_file = 'test-file.zip'; // filename…
#SQL
oracle 创建job 语句
declare job number; begin sys.dbms_job.submit(job, 'PRODUCT;', --job要执行的工作（范例为要执行的存储过程） to…
#Objective-C
iOS使后台可以运行代码 比如定时器
//后台运行定时器 -(void)applicationDidEnterBackground:(UIApplication *)application{ UIApplication…
#Objective-C
ios数据类型转换
ios开发－数据类型转换 1，NSData 与 NSString NSData –> NSString NSString*aString = [[NSS…
#SQL
MySQL 导出 BLOB 字段到文件
SELECT certificate INTO DUMPFILE '/tmp/certificate.bin' FROM identity WHERE id = 42;
#Objective-C
UIWebView自适应高度
//webview自适应高度 delegate里面实现 - (void)webViewDidFinishLoad:(UIWebView *)webView { NSString *…
#Ruby
Ruby 字符串回文判断
def is_palindrome(word) if word == word.reverse "#{ word } is a palindrome." else "#{ word…
#Objective-C
iOS判断手机APP第一次启动
ios开发－判断手机APP第一次启动 代码： //判断是不是第一次启动 if (![[NSUserDefaults standardUserDefaults]boolForKey:…
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