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<html?>
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<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?weekday?=?["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
??var?myDay?=?new?Date();
??var?year?=?myDay.getFullYear();
??var?month?=?myDay.getMonth();
??var?date?=?myDay.getDate();
??var?week?=?weekday[myDay.getDay()];??
??//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?myStr?=?scoreStr.split(";");
??var?sum=0;
??for?(var?i?=?0;?i?<?myStr.length;?i++)?{
??????var?score?=?parseInt(myStr[i].substr(-2));
??????sum?=?sum?+?score;
??}
??//從數(shù)組中將成績(jī)撮出來(lái),然后求和取整,并輸出。
???document.write(year+"年"+month+"月"+date+"日 "+week+"--班級(jí)總分為:"+sum);
</script>
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<body>
</body>
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2016-07-17
利用數(shù)組的索引和數(shù)組對(duì)應(yīng)的數(shù)值來(lái)運(yùn)算!