System.in.read()有什么功能呢？

System.in.read():
    读取字符串

import java.io.IOException;

public class MainClass {

    public static void main(String[] args) {
        int inChar;
        System.out.println("输入字符串:");
        try {
            inChar = System.in.read();
            System.out.print("您输入的字符串:");
            System.out.println(inChar);
        }
        catch (IOException e){ 
        }
    }
}