1、下载并安装ideaIU （https://www.jetbrains.com/idea/download/#section=windows ，下载Ultimate版）
2、下载 JetbrainsCrack-2.6.2.jar到磁盘某个位置 （http://idea.lanyus.com/jar/JetbrainsCrack-2.6.10-release-enc.jar ）
3、修改${idea_home}/bin目录下的 idea.exe.vmoptions 或者idea64.exe.vmoptions, 以javaagent方式添加 JetbrainsCrack-2.6.2.jar：
-javaagent:D:/your/jetbraincrack.jar/path
4、启动idea, 在激活页面输入下面的注册码（有效期至2099年），
ThisCrackLicenseId-{
"licenseId":"ThisCrackLicenseId",
"licenseeName":"idea",
"assigneeName":"",
"assigneeEmail":"idea@163.com",
"licenseRestriction":"For This Crack, Only Test! Please support genuine!!!",
"checkConcurrentUse":false,
"products":[
{"code":"II","paidUpTo":"2099-12-31"},
{"code":"DM","paidUpTo":"2099-12-31"},
{"code":"AC","paidUpTo":"2099-12-31"},
{"code":"RS0","paidUpTo":"2099-12-31"},
{"code":"WS","paidUpTo":"2099-12-31"},
{"code":"DPN","paidUpTo":"2099-12-31"},
{"code":"RC","paidUpTo":"2099-12-31"},
{"code":"PS","paidUpTo":"2099-12-31"},
{"code":"DC","paidUpTo":"2099-12-31"},
{"code":"RM","paidUpTo":"2099-12-31"},
{"code":"CL","paidUpTo":"2099-12-31"},
{"code":"PC","paidUpTo":"2099-12-31"}
],
"hash":"2911276/0",
"gracePeriodDays":7,
"autoProlongated":false}