从yyyy-mm-dd到dd:mm:yyyy的日期格式转换

date_str = "yyyy-mm-dd"
year, month, day = date_str.split("-")
new_date_str = f"{day}:{month}:{year}"
print(new_date_str)

String dateStr = "yyyy-mm-dd";
String[] parts = dateStr.split("-");
String newDateStr = parts[2] + ":" + parts[1] + ":" + parts[0];
System.out.println(newDateStr);

var dateStr = "yyyy-mm-dd";
var parts = dateStr.split("-");
var newDateStr = parts[2] + ":" + parts[1] + ":" + parts[0];
console.log(newDateStr);