我想从字符串中取出一个字符

Question

我需要帮助。试图从字符串中取出第二个字符时，我该怎么做？

// read in a string from the user in the following format: 
//pyramid slot number, block letter, whether or not the block should be lit 
Console.Write("Enter slot number, block letter & if the block should be lit or not (y/n)"); 
string csvString = Console.ReadLine(); 

// find comma location 
int commaLocation = csvString.IndexOf(','); 

// extract slot number 
int slotnumber = int.Parse(csvString.Substring(0,commaLocation)); 

// Print slot number 
Console.WriteLine("Slot number: " + slotnumber); 

// extract block letter 
*string blockletter = string.ConvertToChar(csvString.Substring(commaLocation + 1));* 
      // print block letter 
Console.WriteLine("Block letter: " + blockletter); 

Answer 1

您可以使用Split()将字符串分隔成单词/字符列表。

List<string> charactersSplit = csvString.Split(","); 
string slotNumber = charactersSplit[0]; 
string blockLetter = charactersSplit[1];