[typescript] Experimental support for decorators is a feature
用到typescrip装饰器语法,使用命令tsc进行编译时,报错如下Experimentalsupportfordecoratorsisafeaturethatissubjecttochangeinafuturerelease.Setthe'experimentalDecorators'optioninyour'tsconfig'or'jsconfig'toremovethiswarning