/**
*
* @param number int整型
* @return int整型
*/
int jumpFloor(int number ) {
// write code here
if(number==0)
return 0;
if(number<=2)
return number;
return jumpFloor(number-1)+jumpFloor(number-2);
} 
/**
*
* @param number int整型
* @return int整型
*/
int jumpFloor(int number ) {
// write code here
if(number==0)
return 0;
if(number<=2)
return number;
return jumpFloor(number-1)+jumpFloor(number-2);
}