Question

当我使用substring时，我一直在努力解决我的问题。

C＃：

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";

我想要的：

使用子字符串
然后将sInput分解为新的两个变量，例如：

来自：

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";

以

string sMeal = "vegetable lasgane";
string sReceipt= "cheese sauce etc...";

如何在C＃中执行此操作？您的代码示例将非常适用。谢谢！

Answer 1

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";
string[] splitString = sInput.Split('{');
string firstString = splitString[0];
string secondString = splitString[1].Replace("}", "").Split(':')[1];

应该可以做到这一点。

Answer 2

只需使用String.SubString和String.IndexOf这样的方法;

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";
string sMeal = sInput.Substring(0, sInput.IndexOf('{'));
Console.WriteLine(sMeal);
//vegetable lasgane 

string sReceipt = sInput.Replace('{', ' ').Replace('}', ' ');
sReceipt = sReceipt.Substring(sReceipt.IndexOf(':') + 1).Trim();
Console.WriteLine(sReceipt); 
//cheese sauce etc...

这是DEMO。

Answer 3

你可以Replace()删除字符，Split("{")分隔2个字符串

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";
sInput = sInput.Replace("}", "");
sInput = sInput.Replace("receipt:", "");
string[] Parts = sInput.Split('{');

现在可能Trim()如果需要

string sMeal = Parts[0].Trim();
string sReceipt= Parts[1];

Answer 4

尝试使用value.split("{");

此处有更多示例：http://www.dotnetperls.com/split

Answer 5

这不是很难：

sMeal = sInput.Split(" { receipt: ")[0];

和

sReceipt = sInput.Split(" { receipt: ")[1];
sReceipt = sReceipt.Substring(0,sReceipt.Length-1);

Answer 6

产量：膳食：蔬菜烤宽面条食谱：奶酪酱等......

public void Foo()
{
  int updationIndex = 0; 
  Func<string, char, string> getMyString1 = (givenString, takeTill) =>
         {
            var opString =
                new string(
                    givenString.ToCharArray()
                               .TakeWhile(x => x != takeTill)
                               .ToArray());

            updationIndex = inputString.IndexOf(givenString, StringComparison.CurrentCultureIgnoreCase)
                            + opString.Length;

            return opString;
        };

        var smeal = getMyString1(inputString, '{');
        Console.WriteLine("Meal: " + smeal);
        while (updationIndex < inputString.Length)
        {
            var sReceipt = getMyString(inputString.Remove(0, updationIndex), ':', '}');
            Console.WriteLine("sReceipt: "+ sReceipt);
            if (string.IsNullOrWhiteSpace(sReceipt))
            {
                break;
            }

        }

}

Answer 7

string sInput = "vegetable lasgane { receipt: cheese sauce etc...}";
string one = sInput.Substring(0, sInput.IndexOf("{"));

int start = sInput.IndexOf("{");
int end = sInput.IndexOf("}");
string two = sInput.Substring(start + 1, end - start - 1);

Response.Write(one + "\n"); // your 1st requirement
Response.Write(two + "\n"); // your 2nd requirement

如何使用子字符串以及如何将一个变量分解为两个变量？

7 个答案: