Play Calculator

Play Calculator, play calc, the calculator can play game, and uses different colors to distinguish the difficulty level of the game, ranging from simple to difficult followed by orange, yellow, green, dark green, cyan, blue, purple, black, aubergine, pink, red.玩计算器，玩计算，可以玩游戏的计算器，用不同颜色来区分游戏难度等级，从简单到困难依次为橙、黄、绿、深绿、青、蓝、紫、黑、紫红、粉红、红。