我有一个字符串,我需要与另一个字符串数组匹配。如果我找到了两个数组值的匹配,那么我必须从字符串中拆分数值,并使用该数值添加 1 ,并使用新值追加实际字符串。我尝试了一些分裂和连接。但我没有得到正确有效的方法来解决问题。以下是我的情景。
实际字符串:
BK-TS00023,X1-TS00000101,X4-A10000024,Y1-3,
比较字符串
BK Books // Compare first two characters => BK Books matches with BK-TS00023
X1 Serials // Compare first two characters => X1 Serials matches with X1-TS00000101
所以,当我找到与这些字符串的匹配时,我需要得到像 00023 , 00000101 这样的数值,然后将值增加1.然后附加默认值串。结果字符串将是这样的。
结果字符串
'BK-TS00024',
'X1-TS00000102',
'X4-A10000025',
'Y1-4'
我尝试了以下方式。请任何人帮我提供这种方案的正确方法。
代码
InfoType="BK Books"; // or "X1 Serials" // or etc ..
var splitInfo = InfoType.Split(' ');
var SiteFileInfo = Db.SiteFiles.Where(asd => asd.Code == "AutoBarcode").Select(asd => asd.Line1).FirstOrDefault();
var splitSiteFile = SiteFileInfo.Split(',');
int cnt = 0;
foreach (var s in splitSiteFile)
{
cnt += 1;
if (s.Contains(splitInfo[0]))
{
//var infoSiteSplit = s.Split('-');
var olyNumber = Regex.Split(s, @"(?<=\p{L})(?=\p{N})");
int i = 0;
string Truncstring = "";
foreach (var a in olyNumber)
{
bool result = int.TryParse(a, out i);
if (result)
{
i += 1;
int befconv = Convert.ToInt32(a);
Truncstring = s.Replace(befconv.ToString(), i.ToString());
}
}
splitSiteFile[cnt - 1] = Truncstring;
string JoinString = string.Join(",", splitSiteFile);
Db.ExecuteStoreCommand("update SiteFile set Line1={0} where Code={1}", JoinString, "AutoBarcode");
Db.SaveChanges();
return Truncstring;
}
}
答案 0 :(得分:1)
您可以使用Regex.Replace Method (String, String, MatchEvaluator)
(以及可选的代理人而不是MatchEvaluator
个实例)。
尝试此操作(过滤器中的所有匹配项将增加1):
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
class Program
{
static void Main(string[] args)
{
var input = "BK-TS00023,X1-TS00000101,X4-A10000024,Y1-3,";
var filter = new[] { "BK Books", "X1 Serials" };
Console.WriteLine(input);
var result = IncreaseWithFilter(input, filter);
Console.WriteLine(result);
}
private static string IncreaseWithFilter(
string input,
IEnumerable<string> filter)
{
var truncatedFilter = filter.Select(f => f.Substring(0, 2));
var result = Regex.Replace(input, @"([^,].*?)\d+(?=,)",
(match1) =>
{
var value = match1.Value;
if (truncatedFilter.Any(f => match1.Value.StartsWith(f)))
{
value = Regex.Replace(match1.Value, @"(?<=)\d+",
(match2) =>
{
return (Convert.ToInt32(match2.Value) + 1)
.ToString()
.PadLeft(match2.Value.Length, '0');
});
}
return value;
});
return result;
}
}
输出:
BK-TS00023,X1-TS00000101,X4-A10000024,Y1-3,
BK-TS00024,X1-TS00000102,X4-A10000024,Y1-3,
代码中的示例用法:
InfoType = "BK Books";
var SiteFileInfo = Db.SiteFiles
.Where(asd => asd.Code == "AutoBarcode")
.Select(asd => asd.Line1)
.FirstOrDefault();
var result = IncreaseWithFilter(
SiteFileInfo,
new[] { InfoType });
答案 1 :(得分:1)
为什么不简单地选择字符串的正确部分(数字部分),将其转换为int,增加它并再次转换为字符串?
类似的东西:
public string IncreaseByOne(string original) {
var numberpart = "";
var index = original.Length - 1;
while (index != 0) {
var oneletter = original.Substring(index, 1);
var isint = int.TryParse(oneletter, out digit);
if (!isint) break;
numberpart += oneletter;
--index;
}
var firstpart = original.Substring(0, orignal.Length - numberpart.Length);
var padlength = numberpart.Length;
int value;
int.TryParse(numberpart, out value);
var result = ++value.ToString().PadLeft(padlength, '0');
return firstpart + result;
}
答案 2 :(得分:1)
作为一个额外的提示,可以在增加int之后简化字符串创建,而不是计算字符串的长度并使用零的PadLeft,你也可以使用int并使用StringFormat IFormatProvider来添加前导零: / p>
string paddedString = String.Format("TS{1:00000}", count);
//when count = 24, should output "TS00024"