<script type="text/javascript">var curDate = new Date();var year = curDate.getFullYear();var month = curDate.getMonth()+1;var day = curDate.getDate();var weekday = curDate.getDay();if(weekday != 0){ weekday = "星期"+weekday; }else{ weekday = "星期日"; }document.write(year+"年"+month+"月"+day+"日"+" "+weekday);var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";var scoreArr = scoreStr.split(";");var scores = new Array();var sum = 0,aver = 0;for(var i in scoreArr){ //将转化后的数组中的成绩取出来，并转化为Int型 scores[i] = parseInt(scoreArr[i].substr(scoreArr[i].indexOf(":")+1));}for(var i in scores){ sum = sum+scores[i];}aver = sum/scores.length;document.write("--"+"班级平均分为："+Math.floor(aver));</script>