Groovy中Expando动态类

peopleA = new Expando()peopleA.name="Jack"peopleA["addr"]="ShangHai"PRintln peopleA // {name=Jack, addr=ShangHai}peopleB = new Expando(name:"Mike", addr:"ShengZhen")println peopleB // {name=Mike, addr=ShengZhen}2、动态方法
peopleA = new Expando(name:"Jack", addr:"ShangHai", toString : { "$name live in $addr" })println peopleA.toString() // Jack live in ShangHaipeopleB = new Expando(name:"Mike", addr:"ShengZhen")peopleB.toString = { "$name live in $addr" }println peopleB.toString() // Mike live in ShengZhen