There is a computer training near Yin Di, Tongzhou, which is quite good. Several of my classmates have studied there and there are many courses. You can choose for yourself. The specific address is 938 or 372, get off at Yin Di Railway Station, and walk 100 meters from Northland Customs Bookstore. You can see it. If you can't find it again, ask someone on the roadside. Everybody knows that.

Or Simon. Similarly, take a bus and get off at Ximen Station. There is a staircase to the west of Wu Mei. From there, you can ask which building it is. I wonder if these two are convenient for you.