switch的case语句可以处理int,short,byte,char类型的值, 因为short,byte,char都会转换成int进行处理,这一点也可以从生成的字节码看出. char a = 'e'; switch (a) { case 'c': System.out.println("In case c"); break; case 'd': System.out.println("In case d"); break; default: System.out…
copy from https://jupyter.org/install Getting started with JupyterLab Installation JupyterLab can be installed using conda or pip. For more detailed instructions, consult the installation guide. conda If you use conda, you can install it with: conda…