CALL-BY-REFERENCE Under call-by-reference, a formal parameter becomes a synonym for the the location of an actual parameter. 传实际参数的地址给形参,形参成了该地 址的同义词。CALL-BY-REFERENCE Under call-by-reference, a formal parameter becomes a synonym for the the location of an actual parameter. 传实际参数的地址给形参，形参成了该地 址的同义词