並前往https://medium.com/smartalpha/%E7%94%A2%E6%A5%AD%E9%80%B1%E6%9C%9F%E6%8A%95%E8%B3%87-dram%E8%B6%85%E7%B4%9A%E9%80%B1%E6%9C%9F-e956c5168579