1. 今天要做这个效果(在时间旁边显示今天,昨天)
2. Preview
3. Code:
// 添加 今天 昨天
func show_today_yesterday(d: Date = Date()) -> String {let calendar = Calendar.currentlet today: Date = Date()if calendar.isDate(today, inSameDayAs: d) {return " · 今天"} else {if let interval = calendar.dateComponents([.day], from: d, to: today).day {if interval == 1 {return " · 昨天"} else {return ""}} else {print("日期计算出错")return ""}}
}