while循环和do-while循环

循环三要素

while循环

do-while循环

while循环与do-while循环的区别

应用例子

10的阶乘

      var n = 1;
      var m = 1;
      while (n <= 10) {
        m = m * n;
        n++;
      }
      console.log(m);

      var n = 1;
      var m = 1;
      do {
        m = m * n;
        n++;
      } while (n <= 10);
      {
        console.log(m);
      }