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类只是一个模板（Template），编译后不占用内存空间，所以在定义类时不能对成员变量进行初始化，因为没有地方存储数据。只有在创建对象以后才会给成员变量分配内存，这个时候就可以赋值了。

#include 
   
    #include 
    
     using namespace std;class Solution{
   public:	int age;	char *name;	string like;	int dump(int number){
   				if(number <= 0){
   			return 0;		}		if(number <=2 ){
   			return number;				}		return dump(number - 1 ) + dump(number - 2 );	}};int main(int argc,char *argv[]){
   	Solution solution;		cout<< "dump( " << argv[1] <<") = " << solution.dump(atoi(argv[1])) << endl;		solution.age = 10;	char temp[] = "xiaoming";	solution.name = temp;	solution.like = "play game..";	cout<< "age = " << solution.age << " name = " << solution.name << " like = " << solution.like << endl;		Solution *s = new Solution;	s->age = 10;    cout<< "age = " << s->age << " name = " << s->name << " like = " << s->like << endl;	cout<
    
   

./a.out  5dump( 5) = 8age = 10 name = xiaoming like = play game..age = 10 name = (base)

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