假设我有几个具有相同结构的多维数组，如下所示:$basketA['fruit']['apple']=1;$basketA['fruit']['orange']=2;$basketA['fruit']['banana']=3;$basketA['drink']['soda']=4;$basketA['drink']['milk']=5;$basketB['fruit']['apple']=2;$basketB['fruit']['orange']=2;$basketB['fruit']['banana']=2;$basketB['drink']['soda']=2;$basketB['d