prevMonth method
前一个月
Implementation
DateTime prevMonth() {
final month = this.month - 1;
final year = this.year;
return DateTime(month < 1 ? year - 1 : year, month < 1 ? 12 : month);
}
前一个月
DateTime prevMonth() {
final month = this.month - 1;
final year = this.year;
return DateTime(month < 1 ? year - 1 : year, month < 1 ? 12 : month);
}