Question

这是我的代码：

var num, totalNum, averageNum, numItems, msg;
msg = "";
totalNum = 0;
numItems = 0;
while(true)
{
   num = get_integer("Please enter a number. Enter -99 to quit.", "type here");
   totalNum += num;
   numItems += 1;
   if (num == -99)
   {
   totalNum += 99;
   msg += "Total is: " +string(totalNum) +"#";
   averageNum = real(totalNum / numItems);
   msg += "Average is: " +string(averageNum);
   show_message(msg);
   break;
   }
}

现在，如果我输入数字1和2然后输入-99来打破循环，我得到平均值1.我想得到实数，而不是整数。有什么帮助吗？

Answer 1

2个可能的更正：

...
if (num == -99)
{
totalNum += 99;
numItems -= 1; // <----
msg += "Total is: " +string(totalNum) +"#";
averageNum = real(totalNum) / numItems; // <----
...

Answer 2

让我们尝试以下方法：

averageNum = real(totalNum / numItems); // to get the real portion of all the result not devide real over integer

或尝试：

averageNum = totalNum / numItems; //immediately , the result may be drivin automatically as a real one.

Answer 3

我不知道GML，但此刻，您似乎正在将该部门的结果转换为真实的，而此时为时已晚。

我修改了你的程序，做了一些其他的改进。如果它不是有效的GML，请原谅我。

var num, totalNum, averageNum, numItems, msg;
totalNum = 0;
numItems = 0;
num = get_integer("Please enter a number. Enter -99 to quit.", "type here");
while(num != -99)
{
    totalNum += num;
    numItems += 1;
    num = get_integer("Please enter a number. Enter -99 to quit.", "type here");
}
msg = "Total is: " + string(totalNum) + "#";
averageNum = real(totalNum) / numItems;
msg += "Average is: " + string(averageNum);
show_message(msg);

Answer 4

我不知道Game Maker语言的工作原理。

但是，请尝试更换 averageNum = real(totalNum / numItems);与averageNum = real(totalNum) / numItems;

。{

Answer 5

不是整数或小数问题。当您输入“-99”退出循环时，numItems增加1，导致结果为（1 + 2）/ 3 = 1。您可以像修复totalNum一样修复此问题：

         ···
   if (num == -99)
   {
   totalNum += 99;
   numItems -= 1; //Add this to undo the extra count
   msg += "Total is: " +string(totalNum) +"#";
   averageNum = real(totalNum / numItems);
   msg += "Average is: " +string(averageNum);
   show_message(msg);
   break;
   }
}

此外，您可以删除real（）。它没有任何意义，因为你将真实转化为真实。

游戏制作者语言计算适当的平均值

5 个答案: