QiFeng.ZWY.Utility/StringExtension.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace QiFeng.LMSD.Utility
{
    public static class StringExtension
    {
        static int _rep = 0;
        /// <summary> 
        /// 生成随机数字字符串 
        /// </summary> 
        /// <param name="codeCount">待生成的位数</param> 
        /// <returns>生成的数字字符串</returns> 
        public static string GenerateCheckCodeNum(int codeCount)
        {
            string str = string.Empty;
            long num2 = DateTime.Now.Ticks + _rep;
            _rep++;
            Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> _rep)));
            for (int i = 0; i < codeCount; i++)
            {
                int num = random.Next();
                str = str + ((char)(0x30 + ((ushort)(num % 10)))).ToString();
            }
            return str;
        }
        // <summary>
        /// 需要将字符串截断到合适的长度
        /// </summary>
        /// <param name="str"></param>
        /// <param name="len">字符串长度，以汉字个数计算，英文算半个</param>
        /// <returns></returns>
        public static string GetSubString(string str, int length)
        {

            string temp = str;

            int j = 0;

            int k = 0;

            for (int i = 0; i < temp.Length; i++)
            {

                if (Regex.IsMatch(temp.Substring(i, 1), @"[\u4e00-\u9fa5]+"))
                {

                    j += 2;

                }

                else
                {

                    j += 1;