hchacha

摘要： 全局变量的默认初始化值为0,char为空字符——'\0',string为"\0 " 3 char c; 4 string s; 5 const int a1 = 10; 6 7 int main() 8 { 9 cout << p << endl; 10 cout <<"a " <<a << end 阅读全文