The Martingale strategy is actually a gambling strategy. This method was widely known in Europe not long after the birth of the eighteenth century. In theory, this strategy will never lose money. This strategy is very simple. In a large or small market, it always presses only one unilateral (such as large pressure or small pressure). Once you lose money, you double the number of lost money. , until your platen wins once, you can win all the losses in front and win the amount you pressed for the first time. Let us use an example to illustrate, let's say we come to the Macau casino, there is a table that can only be crushed, we start from 1 yuan (only one side can be pressed), then increase by a multiple of 2 (2x1)n, also That is: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512... until the money is won, then start again.