以下代码是哪一句可能导致的编译错误?
#include <iostream>
using namespace std;
class Test
{
public:
Test() { cout << "i like zk"; }
Test(int) { cout << "i like wangyi"; }
void exe() { cout << "this is my choice"; }
};
int main()
{
Test a(1);//1
a.exe(); //2
Test b(); //3
b.exe(); //4
Test c; //5
c.exe(); //6
return 0;
} 
