📅 最后修改于: 2020-10-31 04:17:15 🧑 作者: Mango
StringReader类用于读取由StringWriter类编写的数据。它是TextReader类的子类。它使我们能够同步或异步读取字符串。它提供了构造函数和方法来执行读取操作。
[SerializableAttribute]
[ComVisibleAttribute(true)]
public class StringReader : TextReader
StringReader具有以下构造函数。
| Constructors | Description |
|---|---|
| StringReader(String) | Initializes a new instance of the StringReader class that reads from the specified string. |
以下是StringReader类的方法。
| Method | Description |
|---|---|
| Close() | It is used to close the StringReader. |
| Dispose() | It is used to release all resources used by the TextReader object. |
| Equals(Object) | It determines whether the specified object is equal to the current object or not. |
| Finalize() | It allows an object to try to free resources and perform other cleanup operations. |
| GetHashCode() | It serves as the default hash function. |
| GetType() | It is used to get the type of the current instance. |
| Peek() | It is used to return the next available character but does not consume it. |
| Read() | It is used to read the next character from the input string. |
| ReadLine() | It is used to read a line of characters from the current string. |
| ReadLineAsync() | It is used to read a line of characters asynchronously from the current string. |
| ReadToEnd() | It is used to read all the characters from the current position to the end of the string. |
| ReadToEndAsync() | It is used to read all the characters from the current position to the end of the string asynchronously. |
| ToString() | It is used to return a string that represents the current object. |
在下面的示例中，StringWriter类用于写入字符串信息，而StringReader类用于读取由StringWriter类编写的字符串。
using System;
using System.IO;
namespace CSharpProgram
{
class Program
{
static void Main(string[] args)
{
StringWriter str = new StringWriter();
str.WriteLine("Hello, this message is read by StringReader class");
str.Close();
// Creating StringReader instance and passing StringWriter
StringReader reader = new StringReader(str.ToString());
// Reading data
while (reader.Peek() > -1)
{
Console.WriteLine(reader.ReadLine());
}
}
}
}
输出：
Hello, this message is read by StringReader class