// 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)