字符串提取操作！ 感谢大侠出手相救！

Question

string str = {"Items":[{"Power":"402 W"},{"DailyYield":"5.3 kWh"},{"TotalYield":"8353.52 kWh"}]};
string[] para1 = str.split("W");//大写的W
string result = "";
if(para1 != null && para1.length > 0)
{
    for(int i = 0;i < para1.length;i ++)
    {
        string[] para2= para1[i].split("\"");
        if(para2 != null && para2.length > 0)
        {
            result += para2[para2.length - 1].replace("k","") + "#";
        }
    }
    result = result.subString(0,result.length - 1);
}
我是这样来写的，最后的result和你要的结果一样。不知道能不能帮到你忙。

Answer 1

using System.Text.RegularExpressionRegex r=new Regex("([\\d]*) ¦([\\d]*\.[\\d]*)");
string res=null;
Match m;m=r.Match(sourcestring);while(m.Success){
res=m.Value+"#";
m=r.NextMatch;
}

Answer 2

用正则嘛，多方便的using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = "{\"Items\":[{\"Power\":\"402 W\"},{\"DailyYield\":\"5.3 kWh\"},{\"TotalYield\":\"8353.52 kWh\"}]}";
            var reg = new Regex(@"\d+(?:\.\d+)?");
            string s = "";
            Match ret = reg.Match(str);
            while (ret.Success)
            {
                s += ret.Value + "#";
                ret = ret.NextMatch();
            }
            s = s.Remove(s.Length - 1);
            Console.WriteLine(s);
            Console.Read();
        }
    }
}

Answer 3

用正则嘛，多方便的using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = "{\"Items\":[{\"Power\":\"402 W\"},{\"DailyYield\":\"5.3 kWh\"},{\"TotalYield\":\"8353.52 kWh\"}]}";
            var reg = new Regex(@"\d+(?:\.\d+)?");
            string s = "";
            Match ret = reg.Match(str);
            while (ret.Success)
            {
                s += ret.Value + "#";
                ret = ret.NextMatch();
            }
            s = s.Remove(s.Length - 1);
            Console.WriteLine(s);
            Console.Read();
        }
    }
}