填空题

main函数中发生编译错误的语句是 【12】
# include <iostream. h>
class A

public:
int a;
const int b:
A() :a(10) ,b(20)
void fun() const

cout<<"a="<<a<<"\tb="<<b<<end1;

;
void main( )
A obj1;
const A * ptr = new A:
ptr = &obj1;
ptr->a=lO0;
ptr->fun(),

【参考答案】

ptr->a=100;