Question

我正在为var UserSchema = new Schema({ name: String, username: { type: String, required: [true, "Please enter a username"], minlength: [6, "Username must be at least 6 characters"], maxlength: [15, "Username cannot exceed 15 characters"], unique: true }, password: { type: String, required: [true, "Please enter a password"], minlength: [6, "Password must be at least 6 characters"], maxlength: [17, "Password cannot exceed 17 characters"], }, roommates: [ { roommates: {type: Schema.Types.ObjectId, ref: "User"}, status: {type: String, default: "pending"}, requests: [ {type: Schema.Types.ObjectId, ref: "Request"} ], balance: {type: Number, default: 0} } ] })分配值。如果我从UILabel获得的价值比\ n显示的那样，并且不会将其作为新行读取。这是我的代码

NSManagedObject

我希望UiLabel读取\ n作为新行

但是下面的代码给出了预期的输出

let cards:Card = cardArray[0] as! Card
lblTitle?.text = cards.title 
//Output in UiLabel is "This is \n title"

Answer 1

我认为您title包含转义字符，即\n在\\n替换\n时打印的原因。

Swift 3

lblTitle?.text = cards.title.replacingOccurrences(of: "\\n", with: "\n")

Swifr 2.3或更低

lblTitle?.text = cards.title.stringByReplacingOccurrencesOfString("\\n", withString: "\n")

读UILabel中的\ n

1 个答案: