using Api.Framework.Cps; using CsharpHttpHelper; using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; namespace ProductClient { class Tools { public static string GenerateRandomCode(int number) { StringBuilder sb = new StringBuilder(); Random r = new Random(); for (int i = 0; i < number; i++) { sb.Append(r.Next(0, 9)); } return sb.ToString(); } } }