青蛙过河，六只小青蛙过河小游戏。 适合在移动端展示 就是有7块石头，6只青蛙要过河，结束应该是3只公的和3只母的换个位置和方向， 一款很经典的过河游戏。-Frogs, six little frogs across the river. Fit in the mobile terminal display There are 7 stones, 6 frogs to cross the river, the end should be 3 male and 3 female