获得对象的所有属性名 || 将对象o的所有属性名放到数组中 var o = {x:1,y:2,z:3}; var arr = []; var i = 0; for(arr[i++] in o){};//是空的循环体 console.log(arr); ["x", "y", "z"] 在js中遇到return;可以看到运行到return;函数到这就停止了,循环也停止了,只是return;后面的不执行了,在这之前打印的还在,也就是说函数和循环中的re
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using reflector = System.Reflection; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { reflector::Asse
http://mathworld.wolfram.com/HilbertSpace.html A Hilbert space is a vector space with an inner product such that the norm defined by turns into a complete metric space. If the metric defined by the norm is not complete, then is instead known as a
Reproducing kernel Hilbert space Mapping the points to a higher dimensional feature space http://www.gatsby.ucl.ac.uk/~gretton/coursefiles/lecture4_introToRKHS.pdf [We next show that every reproducing kernel Hilbert space has a unique positive defini