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abc-bdef-axdg,ÎÒÖ»ÏëÈ¡µ½µÚÒ»¸ö"-"µÄλÖ㬸ÃÔõôд£¿£¿£¿£¿

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C# code:
string str = "abc-bdef-axdg";
Console.WriteLine(str.Substring(0, str.IndexOf("-")));


½á¹û-->>>abc

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C# code:
String.IndexOf

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static void Main(string[] args)
  {

  string str = "abc-bdef-axdg";
  Console.WriteLine(str.IndexOf('-'));
  Console.ReadLine();

  }

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C# code:
"abc-bdef-axdg".IndexOf("-")

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SubStringºÍString.IndexOf

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C# codestring str="abc-bdef-axdg";
Console.WriteLine(str.Substring(0, str.IndexOf("-")));
½á¹û-->>>abc

ding

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String.IndexOf

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string.Indexof

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