Employee.log=log
Employee e1 = new Employee()
log.info e1.add(1,2,3,4)
// optional parameters in groovy
log.info e1.add(2,3)
log.info e1.add(2,3,10)
class Employee {
def static log
public def add(a,b,c=3,d=10){
return a+b+c+d
}
}
Run result:
Tue Oct 06 19:31:50 CST 2015:INFO:10 Tue Oct 06 19:31:50 CST 2015:INFO:18 Tue Oct 06 19:31:50 CST 2015:INFO:25
[Training Video - 4] [Groovy] Optional parameter in groovy
原文：http://www.cnblogs.com/MasterMonkInTemple/p/4857573.html