I'm going to South Africa on business for a year. How should I prepare my belongings?

Hello, I have lived in South Africa for five years. The weather in South Africa is quite good. Basically, it is enough to wear a T-shirt in summer, and it will not be too cold in winter. Just add a coat. But the climate in Joburg is very different from that in Cape Town. The public security in South Africa is not very good, especially where there are many Chinese. Try not to bring a handbag when you go out, so as not to be robbed by blacks. If you need more information, you can email me to chinapercent@yahoo.com.cn.