add an example
add an example

zhiyuanshi/fcore,xnning/fcore,bixuanzju/fcore,hkuplg/fcore,hkuplg/fcore,zhiyuanshi/fcore,hkuplg/fcore,zhiyuanshi/fcore,bixuanzju/fcore,xnning/fcore,wxzh/fcore,wxzh/fcore,bixuanzju/fcore,xnning/fcore,wxzh/fcore