第一版,方便看懂原理
_getWeek = () => {
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";
}
return str;
}
第二版,换一种方式,用switch
_getWeek = (str) => {
var week=""; //存储星期几
switch (new Date(str).getDay()) {
case 0:
week = "星期日";
break;
case 1:
week = "星期一";
break;
case 2:
week = "星期三";
break;
cas