773092133601878

Question

如何从这样的方式读取js中的csv并处理对成绩注释的正确答案：答案包含在xml中，并以逗号分隔<finalquiz><question>  <qnumber>1</qnumber>  <qtitle>what is 2+2 </qtitle>  <a>4</a>  <b>6</b>  <c>2</c>  <d>0</d>  </question>  <question>  <qnumber>2</qnumber>  <qtitle>what is 3+3 </qtitle>  <a>4</a>  <b>6</b>  <c>9</c>  <d>3</d>  <rightanswers>a,b</rightanswers>  </finalquiz>  

Answer 1

正如注释中所讨论的那样，您已经解析了XML，并具有一个包含所需值的字符串，以逗号分隔。这样辛苦的工作就完成了。此时的解决方案非常简单-只需使用“ split”将逗号上的字符串分开即可。像这样的东西：

var rightAnswersString = "a,b"; // Assume you have come up with something like this by parsing the XML

var rightAnswersArray = rightAnswersString.split (",");

for (let i=0; i<rightAnswersArray.length; i++) {

   console.log (rightAnswersArray[i]); // Replace console.log with whatever you need to do with each value

}