JDK介绍与安装：https://blog.csdn.net/shuaigexiaobo/article/details/85280084
JDK安装教程：https://blog.csdn.net/weixin_44193909/article/details/90004570?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158492394119724847021470%2522%252C%2522scm%2522%253A%252220140713.130056874..%2522%257D&request_id=158492394119724847021470&biz_id=0&utm_source=distribute.pc_search_result.none-task