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我正在做一个函数来获得具体的工作日雨燕3.0范围内的功能参数
防爆落在具体日期。周日在9.2016 = 4,11,18,25-
import UIKit
var daysOff = [Int]()
func getNumberOfDaysInMonth (_ month : Int , _ Year : Int ,lookingFor : Int) -> (firstDay: Int , daysResults: [Int]) {
var day = Int()
if lookingFor > 7 || lookingFor < 1 {
print("error")
return (0,[0])
}else {
day = lookingFor
}
let dateComponents = NSDateComponents()
dateComponents.year = Year
dateComponents.month = month
let calendar = Calendar(identifier: .gregorian)
let date = calendar.date(from: dateComponents as DateComponents)!
let range = calendar.range(of: .day, in: .month, for: date)
let maxDay = range?.count
let dow = calendar.component(.weekday, from: date)
var firstday = 0
switch dow {
case let x where x > day:
let a = 8 - dow
firstday = a + day
case let x where x < day:
let a = day - dow
firstday = a + 1
case let x where x == day:
firstday = dow
default:
print("error")
}
switch firstday {
case 1:
print("1")
if maxDay! > 29 {
daysOff = [1,8,15,22,29]
} else {
daysOff = [1,8,15,22]
}
case 2:
print("2")
if maxDay! > 30 {
daysOff = [2,9,16,23,30]
}else {
daysOff = [2,9,16,23]
}
case 3:
print("3")
if maxDay! == 31 {
daysOff = [3,10,17,24,31]
}else {
daysOff = [3,10,17,24]
}
case 4:
print("4")
daysOff = [4,11,18,25]
case 5:
print("5")
daysOff = [5,12,19,26]
case 6:
print("6")
daysOff = [6,13,20,27]
case 7:
print("7")
daysOff = [7,14,21,28]
default:
print("something went wrong")
}
return (firstday,daysOff)
}
let test = getNumberOfDaysInMonth(9,2016,lookingFor: 7)
test.daysResults
test.firstDay
我想请确保lookingFor参数会从1至7
一个电话号码我可以指定一个范围的参数? 我需要警卫声明吗?