分享以下代碼，共同交流
<!DOCTYPE? HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全帶,準(zhǔn)備啟航</title>
<script type="text/javascript">
? //通過(guò)javascript的日期對(duì)象來(lái)得到當(dāng)前的日期，并輸出。
? var date=new Date();
? var year=date.getFullYear()+"年";
? var month=date.getMonth()+"月";
? var date1=date.getDate()+"日";
? //alert(date1);
? var weekq=["星期一","星期二","星期三","星期四","星期五","星期六","星期天"];
? var week=weekq[date.getDay()];
? //alert(week);
? var xinxi="小明:87;小花:81;小紅:97;小天:76;小張:74;小小:94;小西:90;小五:76;小迪:64;小曼:76";
? var fenshu=[xinxi.slice(3,5),xinxi.slice(9,11),xinxi.slice(15,17),xinxi.slice(21,23),xinxi.slice(27,29),xinxi.slice(33,35),xinxi.slice(39,41),xinxi.slice(45,47),xinxi.slice(51,53),xinxi.slice(57,59)];
? // alert(fenshu);
? var sum=0;
?for(var i=0;i<fenshu.length-1;i++){
? ? ? sum=sum+parseInt(fenshu[i]);
?}
? ? //alert(sum);
? ? var avg=sum/fenshu.length;
? document.write(year+month+date1+" "+week+"---班級(jí)平均分為"+avg+" ."+"總分為："+sum);
??
??
</script>
</head>
<body>
</body>
</html>
2019-03-28
兄弟 你的循環(huán)在網(wǎng)頁(yè)能運(yùn)行出來(lái) 我的就悲劇了 運(yùn)行循環(huán)就卡死了 只能寫好多代碼了? 分享一下
<!DOCTYPE? HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>系好安全帶,準(zhǔn)備啟航</title>
<script type="text/javascript">
? //通過(guò)javascript的日期對(duì)象來(lái)得到當(dāng)前的日期，并輸出。
? var date=new Date();
? var year=date.getFullYear();
? var month=date.getMonth();
? var day=date.getDay();
? var Weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
? var weekday=Weekday[date.getDay()];
? document.write(year+"年"+month+"月"+day+"日"+" "+weekday);
? //成績(jī)是一長(zhǎng)竄的字符串不好處理，找規(guī)律后分割放到數(shù)組里更好操作哦
? var scoreStr = "小明:87;小花:81;小紅:97;小天:76;小張:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
? var score1=parseInt(scoreStr.substr(3,2));
? var score2=parseInt(scoreStr.substr(9,2));
? var score3=parseInt(scoreStr.substr(15,2));
? var score4=parseInt(scoreStr.substr(21,2));
? var score5=parseInt(scoreStr.substr(27,2));
? var score6=parseInt(scoreStr.substr(33,2));
? var score7=parseInt(scoreStr.substr(39,2));
? var score8=parseInt(scoreStr.substr(45,2));
? var score9=parseInt(scoreStr.substr(51,2));
? var score10=parseInt(scoreStr.substr(57,2));
? document.write("--班級(jí)總分為："+Math.floor((score1+score2+score3+score4+score5+score6+score7+score8+score9+score10)/10));
? //從數(shù)組中將成績(jī)撮出來(lái)，然后求和取整，并輸出。
</script>
</head>
<body>
</body>
</html>
2019-04-08
<!DOCTYPE??HTML> <html> <head> ????<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/> ????<title>系好安全帶,準(zhǔn)備啟航</title> ????<script?type="text/javascript"> ????????//通過(guò)javascript的日期對(duì)象來(lái)得到當(dāng)前的日期，并輸出。 ????????var?Udate?=new?Date(); ????????var?weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]; ????????document.write('今天是：'); ????????document.write(Udate.getFullYear()+'年'); ????????document.write((Udate.getMonth()+1)+'月'); ????????document.write(Udate.getDate()+'日 '); ????????document.write(weekday[Udate.getDay()]+'<br>'); ????????//成績(jī)是一長(zhǎng)竄的字符串不好處理，找規(guī)律后分割放到數(shù)組里更好操作哦 ????????var?scoreStr?=?"小明:87;小花:81;小紅:97;小天:76;小張:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76"; ????????scoreStr1=scoreStr.split(';'); ????????//如果沒(méi)寫參數(shù)?，則會(huì)變成只有一個(gè)?整個(gè)字符串元素的列表 ????????var?sum=0; ????????//?sum?要在for外面定義?要不然會(huì)一直賦值 ????????for(var?i=0;i<scoreStr1.length;i++)?{ ????????????var?num?=?scoreStr1[i].substring(3,?5); ????????????document.write(num+'<br>'); ????????????sum+=parseInt(num); ????????} ????????document.write(sum); ????????var?average=parseInt(sum/scoreStr1.length); ????????//parseInt也可以來(lái)取整 ????????document.write('這個(gè)班的平均分是：'+average); ????????//從數(shù)組中將成績(jī)撮出來(lái)，然后求和取整，并輸出。 ????</script> </head> <body> </body> </html>