1.%是求余,//是整除的商,**是乘方 abs(var) Absolute value pow(x, y) Can be used in place of ** operator pow(x,y,modulo) Ternary power-modulo (x **y) % modulo round(var[, n]) Returns a value rounded to the nearest 10-n or (10**-n), where n defaults to 0) divmod(x,…