Free online tool to calculate bet counts and amounts for compound and bold-drag bets in Double Color Ball and 3D lotteries. No installation required.
复式胆拖注数计算器是一款免费在线工具，支持双色球复式、胆拖及3D/排列三组选复式的注数与金额计算。
彩民在购买复式或胆拖彩票时，需要快速准确计算注数和所需金额，避免手动计算错误。
输入：模式、选号个数（如红球/蓝球个数、胆码/拖码个数、选号个数）、倍数。输出：注数、单倍金额（每注2元）、倍数后总金额。
适合购买双色球或3D/排列三复式、胆拖彩票的彩民，以及需要快速计算注数和金额的彩票爱好者。
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