ios Swift：使用元组在单个开关案例中的多个间隔
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Swift: Multiple intervals in single switch-case using tuple
提问by iiFreeman
Have a code like:
有一个像这样的代码：
switch (indexPath.section, indexPath.row) {
case (0, 1...5): println("in range")
default: println("not at all")
}
The question is can I use multiple intervals in second tuple value?
问题是我可以在第二个元组值中使用多个间隔吗？
for non-tuple switch it can be done pretty easily like
对于非元组开关，它可以很容易地完成，就像
switch indexPath.section {
case 0:
switch indexPath.row {
case 1...5, 8...10, 30...33: println("in range")
default: println("not at all")
}
default: println("wrong section \(indexPath.section)")
}
Which separator should I use to separate my intervals inside tuple or it's just not gonna work for tuple switches and I have to use switch inside switch? Thanks!
我应该使用哪个分隔符来分隔元组内的间隔，或者它不适用于元组开关而我必须在开关内使用开关？谢谢！
回答by drewag
You have to list multiple tuples at the top level:
您必须在顶层列出多个元组：
switch (indexPath.section, indexPath.row) {
case (0, 1...5), (0, 8...10), (0, 30...33):
println("in range")
case (0, _):
println("not at all")
default:
println("wrong section \(indexPath.section)")
}
