修改
public class dg {
public static void main(String[] args) {
int m = 100;
int he = dg(m);
System.out.println("1加到100是"+he);
}
static int dg(int i) {
int sum = 0;
if (i != 1) {
sum = i + dg(i - 1);
}else{
return 1;
}
return sum;
}
}
int i,sum=0;应该不需要有int i吧?形参(static int dg(i))里不已经有i了吗?