方法一:
// 计算系统当前是星期几
var str = "今天是星期" + "日一二三四五六".charat(new Date().getDay());
方法二:
var a = new array("日", "一", "二", "三", "四", "五", "六");
var week = new Date().getDay();
var str = "今天是星期"+ a[week];
alert(str);
方法三:
var str = "今天是星期";
var week = new Date().getDay();
switch (week) {
case 0 :
str += "日";
break;
case 1 :
str += "一";
break;
case 2 :
str += "二";
break;
case 3 :
str += "三";
break;
case 4 :
str += "四";
break;
case 5 :
str += "五";
break;
case 6 :
str += "六";
break;
}
alert(str);
方法四:
var str = "";
var week = new Date().getDay();
if (week == 0) {
str = "今天是星期日";
} else if (week == 1) {
str = "今天是星期一";
} else if (week == 2) {
str = "今天是星期二";
} else if (week == 3) {
str = "今天是星期三";
} else if (week == 4) {
str = "今天是星期四";
} else if (week == 5) {
str = "今天是星期五";
} else if (week == 6) {
str = "今天是星期六";
}
alert(str);
当然这四种方法的完美程度是一目了然的。
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