有以下程序: #include <iostream> using namespace std; class count {static int n; public:count ( ){ n++;}static int test(){ for (int i = 0; i < 4; i++ ) n++; return n;} }; int count :: n = 0; int main() {cout<<count :: test()<<" ";count c1, c2;cout<<count :: test()<<end1;return 0;} 执行后的输出结果是( )。
A.4 10
B.1 2
C.22
D.24