yourtion

+(void)countDown {
    
    __block int count = 10;
    
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue);
    dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0);
    dispatch_source_set_event_handler(_timer, ^{
        NSLog(@"Once");
        if (count <= 0) {

yourtion

#SublimeText 3

# AS
sudo apt-add-repository ppa:paolorotolo/android-studio 
sudo apt-get update 
sudo apt-get install android-studio

# SmartGit
sudo add-apt-repository ppa:eugenesan/ppa
sudo apt-get update

yourtion

sudo -s
nginx=stable # use nginx=development for latest development version
add-apt-repository ppa:nginx/$nginx
apt-get update 
apt-get install nginx

yourtion

//邮箱  
+ (BOOL) validateEmail:(NSString *)email  
{  
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";  
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];  
    return [emailTest evaluateWithObject:email];  
}  
  
  
//手机号码验证  

yourtion

#!/bin/sh
# Pick a uuid for the app (or reuse existing one).
if ! [ -f installApp.uuid ]; then
    uuidgen > installApp.uuid
fi
UUID=$(cat installApp.uuid)
#create supporting folders
TOPDIR="/Users/Apple/Library/Application Support/iPhone Simulator/7.0/Applications/$UUID/"
mkdir -p "$TOPDIR"
mkdir -p "$TOPDIR/Documents"

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- (UIImage *)createNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat) size {
    CGRect extent = CGRectIntegral(image.extent);
    CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
    // Since CoreImage nicely interpolates, we need to create a bitmap image that we'll draw into
    // a bitmap context at the desired size;
    size_t width = CGRectGetWidth(extent) * scale;
    size_t height = CGRectGetHeight(extent) * scale;
    CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray();
    CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone);
    CIContext *context = [CIContext contextWithOptions:nil];

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<?php
define( "ROOTPATH", "../../" );
include( ROOTPATH."includes/admin.inc.php" );
include( "language/".$sLan.".php" );
include( ROOTPATH."includes/data.inc.php" );
$act = $_POST['act'];
switch ( $act )
{
    case "getbordertemplist" :
        needauth( 5 );

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sudo -i
cd /etc/apt/sources.list.d
echo "deb http://archive.ubuntu.com/ubuntu/ raring main restricted universe multiverse" >ia32-libs-raring.list
apt-get update
apt-get install ia32-libs
rm /ia32-libs-raring.list
apt-get update
exit

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#在 Mac 上打开 Terminal 输入如下命令并替换 /path/ 为目标路径，即可修改截屏路径。
defaults write com.apple.screencapture location /path/

#运行上一条后还需要在 Terminal 输入下述命令，才能让新路径生效：
killall SystemUIServer

yourtion

UIButton *clearButton = [myTextField valueForKey:@"_clearButton"];
[clearButton setImage:[UIImage new] forState:UIControlStateNormal];