The game is really not for this purpose. Besides Mandarin, there are TB and Pyramid ... Pyramid has many functions, but to enjoy more functions, you need to buy a more advanced version, and ordinary people can use the ordinary version ... Professional version can realize many functions that other software can't ... Mandarin is easy to understand ... TB and Pyramid are more demanding. Especially pyramids ... VB-like languages ... this is also very simple ... and at present, Mandarin and pyramids are charged annually, which is good. TB is simply cheating. How much does each transaction increase ... regardless of the suggestion of large transaction volume ... small transaction volume and high cost performance.