用递归实现累加
package demo;
public class Demo {
public static int sum(int i){
if(i == 0){
return 0;
}
if(i > 0){
return i+=sum(i-1);
}
if(i < 0){
return 0;
}
return 0;
}
public static void main(String[] args) {
System.out.println(sum(100));
}
}
package demo;
public class Demo {
public static int sum(int i){
if(i == 0){
return 0;
}
if(i > 0){
return i+=sum(i-1);
}
if(i < 0){
return 0;
}
return 0;
}
public static void main(String[] args) {
System.out.println(sum(100));
}
}