一个小小的JAVA多线程程序

[{"title":"（ 6 个子文件 12KB ） 一个小小的JAVA多线程程序","children":[{"title":"多线程(学校-学生-父母)","children":[{"title":"share.txt <span style='color:#111;'> 514B </span>","children":null,"spread":false},{"title":"school.txt <span style='color:#111;'> 1.15KB </span>","children":null,"spread":false},{"title":"parent.txt <span style='color:#111;'> 1.72KB </span>","children":null,"spread":false},{"title":"display.txt <span style='color:#111;'> 4.71KB </span>","children":null,"spread":false},{"title":"student.txt <span style='color:#111;'> 455B </span>","children":null,"spread":false},{"title":"school.jar <span style='color:#111;'> 8.35KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]