第二关 赋值运算符-=字符串拼串循环语句while // 你可以把字符串连起来,或者把数字连接到字符串. // 一起唱歌,使用字符串连接: // X potions of health on the wall! // X potions of health! // Take Y down, pass it around! // X-Y potions of health on the wall. var potionsOnTheWall = 10; var numToTakeDown = 1;…