I have a list,list whose element is dict. [{centre: (743), radius: 1105), radius: 41}, {centre: (743, 1106), radius: 48}, {centre: (899, 1443), radius: 48}, {centre: (900, 1442), radius: 40})] this is a data structure about the center and radius o...
persons= [{ name : Jon , age : 32}, { name : Alan , age : 50}, { name : Bob , age :23}] sorted (persons, key = lambda x: (x [ name ],-x [ age ]) persons [{ age : 32, name : Jon }, { age : 50, name : ...
do a page for a period of time, a class for 30 minutes. The data structure that the backend wants is like this 2018-09-17|09:00-09:30,2018-09-18|09:30-11:00,2018-09-19|10:00-11:30,2018-09-20|10:30-11:00,2018-09-21|11:00-11:30,2018-09-22|11:30-12:00 I ...
install the self-developed APP, in the Huawei mate9 model, but you need to use navigator.geolocation, that is, the current location information in your code. but this model will always record the original location information (longitude and latitude) an...
var a = [ 1 , 2 , 3 ] var b = [ 2 , 3 ] var c = [ 4 , 5 , 2 ] ...
for example: whether typescript, is used in the react project also needs to use prop-types for format verification. ...
Code in ViewController: class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() Do any additional setup after loading the view, typically from a nib. let anyobjectype : AnyObject.Type = (NSClassFromS...