使用for循环输出1-100
for (int i = 1;i <= 100;i++){ System.out.println(i); }
使用while循环输出1-100
int j = 1; while (j <= 100){ System.out.println(j); j++; }
使用do......while输出1-100
int k = 1; do{ System.out.println(k); k++; } while(k <= 100);
for (int i = 1;i <= 100;i++){ System.out.println(i); }
int j = 1; while (j <= 100){ System.out.println(j); j++; }
int k = 1; do{ System.out.println(k); k++; } while(k <= 100);