Can I use the plug of iphone5 directly in Hong Kong?

Hong Kong is a three-legged society, whether the country is good or not. But you can buy a converter, which is very cheap, one in 5 yuan. If you live in a place with plug-ins, so much the better. Plug in the power supply and you can charge it. Because I live in Shenzhen and often go to Hong Kong, I am familiar with it. In fact, some hotels provide that converter for free, and some hotels have plug-ins, so you can plug it in directly.