说明：  1．编写一个猜数字的游戏，按下“产生随机数”按钮产生一个0~9的随机数，则在屏幕的提示框显示“输入所猜测的数字”，当输入所猜测的数字并按“确定”按钮后，在提示框中提示“输入正确”(或“猜小了”、或“猜大了”)。 2. 编写程序，从界面输入学生的姓名和学号信息，按下“写入文件”按钮，则将学生信息保存到文件student中，按下“从文件输出学生信息”按钮，则将学生信息文件student中输出到文本框中。
(1. Write a game of guessing numbers. Press the "Generate Random Numbers" button to generate a random number of 0-9, then the screen prompt box shows "Input the guessed number". When the guessed number is entered and the "OK" button is pressed, the prompt box prompts "Enter the correct number" (or "guess smaller" or "guess larger"). 2. Write the program, input the student's name and student number information from the interface, press the "Write in the file" button, then save the student information to the file student, press the "Output the student information from the file" button, then output the student information file student to the text box.)