var _arr=scoreStr.split(";")
var score=new Array() ;
var _num=0;
for(i=0;i<_arr.length;i++){
score[i]=_arr[i].substr(_arr[i].indexOf(":")+1);
_num+=parseInt(score[i]);
}
ave =Math.round(_num/_arr.length);
document.write("Total:"+_num+"AVERAGE:"+ave)
var score=new Array() ;
var _num=0;
for(i=0;i<_arr.length;i++){
score[i]=_arr[i].substr(_arr[i].indexOf(":")+1);
_num+=parseInt(score[i]);
}
ave =Math.round(_num/_arr.length);
document.write("Total:"+_num+"AVERAGE:"+ave)
var mydate=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(mydate.getFullYear()+"年"+(mydate.getMonth()+1)+"月"+mydate.getDate()+"日 "+weekday[mydate.getDay()]+"<br />");
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(mydate.getFullYear()+"年"+(mydate.getMonth()+1)+"月"+mydate.getDate()+"日 "+weekday[mydate.getDay()]+"<br />");
attime= time.getHours()+"时"+time.getMinutes()+"分"+time.getSeconds()+"秒" ;
2015-06-25
substr()是从指定位置,开始,提取,指定数目的字符串。
而,substring是指从指定位置到,结束位置,之间的字符串。
而,substring是指从指定位置到,结束位置,之间的字符串。
2015-06-25
substr()是从指定位置,开始,提取,指定数目的字符串。
而,substring是指从指定位置到,结束位置,之间的字符串.
而,substring是指从指定位置到,结束位置,之间的字符串.
2015-06-25
document.write(mystr.indexOf('o',mystr.indexOf('o')+1));
2015-06-25
function count(){var txt1=parseInt(document.getElementById("txt1").value);var txt2=parseInt(document.getElementById("txt2").value);var suan=document.getElementById("select").value;var number;
switch(suan){case"+":number=txt1+txt2;break;case"-":number=txt1-txt2;break;case"*":number=txt1*txt2;break;case"/":number=txt1/txt2;break}document.getElementById("fruit").value=number};
function sortNum(a,b) {
return b-a;
}
var myarr = new Array("80","16","50","6","100","1");
document.write(myarr.sort(sortNum));
return b-a;
}
var myarr = new Array("80","16","50","6","100","1");
document.write(myarr.sort(sortNum));
2015-06-25