Why does the above figure emphasize that "after the only participant who received the commit message is dead ", even if a new coordinator is elected, the transaction status cannot be determined personal total feeling: suppose there are three part...
I want to add the missing data to the database. How can I change the question? because my folder is going to be added to the same database, it s a bit unclear how to type . : ...
RT. I keep a lot of numbers in a file, all separated by newline (n). for example: 1 2 3 4 saved like this, how can you take out the value of a specific location, for example, if you want to take out the value of 3, or always take out the penultimat...
when using picker, the animation disappears without showing off. confirm, cancel, and click the mask are all animations that do not disappear <Picker visible={this.state.sexVisible} data={[ { value: 1, la...
- (void)viewDidLoad { [super viewDidLoad]; NSArray * imageList = @[@"Googleplus",@"Twitter",]; UIImageView * imageView = [[UIImageView alloc]initWithFrame:CGRectMake(20, 20, 100, 100)]; imageView.backgroundColor = ...
if there is an array ["1","2","3"] how to convert to 1 , 2 , 3 ...