下面程序的输出结果是（ ）。# include ＜iostream．h＞class example{int a；public：example (intb) {a=b++；}void print ( ){a=a+1; cout ＜＜ a ＜＜ ；}void print ( ) const {cout ＜＜ a ＜＜ ；}}；void main ( ){example x (3)；const example y (2)；x. print ( )；y．print ( )；}
A． (operator++(x) )．operator/(y)
B． (operator++(0) )．operator/(y)
C． operator/( (operator++(x，0) )，y)
D． operator/( (operator++(0) )，y)