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<html ><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>系好安全带,准备启航</title><script type="text/javascript">
//通过javascript的日期对象来得到当前的日期,并输出。
var day=new Date(); var week=parseInt(day.getDay()); var year=day.getFullYear(); var mon=day.getMonth()+1; //月份及天数都是从0开始计算,所以要加1 var day=day.getDay()+1; var arr=["日","1","2","3","4","5","6"]; document.write(year+"年"+mon+"月"+day+"日"+" "+"星期"+arr[week]+"<br>"); //成绩是一长串的字符串不好处理,找规律后分割放到数组里更好操作哦 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 fg=scoreStr.split(";") var sum=0; for(var i=0;i<fg.length;i++) { var j=parseInt(fg[i].substr(3,5)) sum+=j; } document.write("班级总分数:"+sum+" ") document.write("班级平均分:"+sum/fg.length);//从数组中将成绩撮出来,然后求和取整,并输出。</script>
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