当我输出结果时，间距用+替换

Question

当我尝试为此函数执行输出时，它将空格替换为+号。请有人帮帮我

图片包含我面临的问题：

function weightdifference(){
        var weight;
        var dreamweight;
        var calDifference;

        weight = parseFloat(document.bmiform.weight.value);
        dreamweight = parseFloat(document.bmiform.dreamweight.value);


        if (dreamweight > weight){

        calDifference = (dreamweight - weight)/0.064;
        return "You need" +calDifference+ "to your ideal weight";
        }

        else if (dreamweight < weight){

            calDifference = (weight - dreamweight)/0.064;
            return "You need" +calDifference+ "to your ideal weight";
        }

    }

    function results(){
                   var calDifference = weightdifference();
                   var Difference = calDifference;
                   document.bmiform.Difference.value = Difference;
                   document.bmiform.submit();
       }

结果页面

 var difference;
 difference = decodeURIComponent(getUrlVars()["Difference"]);

     Days to Target Weight: <script>document.write(difference)</script><br>

谢谢！

Answer 1

我猜你正在使用PHP服务器端并使用urlencode对参数进行编码。 This answer就是为什么我猜这个。

如果您可以更改服务器端，请将其更改为使用rawurlencode。

如果你不能，并且知道 +将被编码（例如，%2b），那么你可以安全地执行此操作：< / p>

difference = decodeURIComponent(getUrlVars()["Difference"].replace(/\+/g, "%20"));

在那里，我们将+替换为空格的标准%20序列，然后让decodeURIComponent完成其工作。

但如果可以，请更新数据的编码方式。