struct Person { 
 string name; 
 int age; 
}; 
Person p("Yang", 10);

struct Person { 
 string name, 
 int age; 
}; 
Person p; 
p.name = "Yang"; 
p.age = 10;

struct Person { 
 string name; 
 int age; 
}; 
Person p = { "Yang", 10 };

struct Person { 
 string name; 
 int age; 
}; 
Person p = new Person("Yang", 10);