提示输入值，并用它在HTML

的元素我有一个脚本与“数据量”提示输入值，并用它在HTML

<html> 

    <body> 

     <script>"prompt('Please enter your name','')"</script> 

     <a href="http://249lease.webs.com/" class="dwolla_button" data-name="Lease" data-desc="Payments" data-amount="5" data-shipping="0"    data-tax="0" data-guest-checkout="true" data-key="sHqCOc31Vh3JiAsPhBfEk5f4D9bAWKLzwaT06ah3Aw65i0gkZl">Bank Account (25¢)</a> 


     <script type="text/javascript"> 


     document.getElementsByClassName("dwolla_button")[0].setAttribute("data-amount", "43") 


     </script> 

     <script type="text/javascript" src="https://www.dwolla.com/scripts/button.min.js"> </script> 




    </body> 

</html>

我想提示“数据量的价值变化值“所以我尝试了下面的脚本，它为我称为XxX的变量添加了一个提示，我现在如何在我的Javascript中使用该变量？

<html> 

    <body> 

     <script>"prompt('Please enter your name','')"</script> 

     <a href="http://249lease.webs.com/" class="dwolla_button" data-name="Lease" data-desc="Payments" data-amount="4" data-shipping="0"    data-tax="0" data-guest-checkout="true" data-key="sHqCOc31Vh3JiAsPhBfEk5f4D9bAWKLzwaT06ah3Aw65i0gkZl">Bank Account (25¢)</a> 


     <script type="text/javascript"> 

     var XxX= prompt("amount", ""); 


     document.getElementsByClassName("dwolla_button")[0].setAttribute("data-amount", "XxX"); 


     </script> 

     <script type="text/javascript" src="https://www.dwolla.com/scripts/button.min.js"> </script> 




    </body> 

</html>

来源

2013-03-09 Josh Murray

删除变量名称周围的引号。在单引号或双引号之间添加任何内容会导致它被用作字符串文字：

var XxX = prompt("amount"); 
document.getElementsByClassName("dwolla_button")[0].setAttribute("data-amount", XxX);

来源

2013-03-09 22:07:47 BenM

提示输入值，并用它在HTML

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