Groovy预览--可重写的操作符

 

Operator	Name	Method	Works with
a + b	Plus	a.plus(b)	Number, String, Collection
a - b	Minus	a.minus(b)	Number, String, Collection
a * b	Star	a.multiply(b)	Number, String, Collection
a / b	Divide	a.div(b)	Number
a % b	Modulo	a.mod(b)	Integral number
a++ ++a	Post increment Pre increment	a.next	Number，String，range
a-- --a	Post decrement Pre decrement	a.previous	Number，String，range
a **b	power	a.power(b)	Number
a | b	Numerical or	a.or(b)	Integral number
a  &  b	Numerical and	a.and(b)	Integral number
a ^ b	Numerical xor	a.xor(b)	Integral number
-a	Bitwise complement	a.negate()	Integral number,String
a[b]	Subscript	a.getAt(b)	Object, list, map, String, Array
a[b]=c	Subcript assignment	a.putAt(v,c)	Object, list, map, StringBuffer, Array
a << b	Left shift	a.leftShift(b)	Integral number
a >> b	Right shift	a.rightShift(b)	Integral number
a >>> b	Right shift unsigned	a.rightShiftUnsigned(b)	Integral number
switch(a){ case b: }	Classification	b.isCase(a)	Object, range, list, collection, pattern, closure
a <=> b	Spaceship	a.compareTo(b)	java.lang.Comparable
a > b	Greater than	a.compareTo(b) > 0
a >= b	Greater than or equal to	a.compareTo(b) >= 0
a < b	Less than	a.compareTo(b) < 0
a <= b	Less than or equal to	a.compareTo(b) <= 0