在安装android studio 的时候,会报一个错误: --------------------------- Error launching Android Studio --------------------------- The environment variable JAVA_HOME (with the value of C:\Program Files\Java) does not point to a valid JVM installation. ------------
Android Studio显示行号 File-->Setting(Ctrl+Alt+S),选择Editor-->General-->Appearance,右侧勾选Show line numbers 设置鼠标悬停显示文档提示 1.File->Setting->Editor -> General ->Other -> 勾选 Show quick documentation on mouse move 2.Ctrl+Q 快捷键(按下此快捷键可显示文档提示)