ios - 在 Swift 中追加字符串

Question

我是 iOS 新手。我目前正在使用 Objective-C 和 Swift 学习 iOS。

要在 Objective-C 中附加一个字符串，我使用以下代码:

 NSString *string1 = @"This is";
 NSString *string2 = @"Swift Language";
 NSString *appendString=[NSString stringWithFormat:@"%@ %@",string1,string2];
 NSLog(@"APPEND STRING:%@",appendString);

任何人请指导我。

Answer 1

很简单:

对于 ObjC:

     NSString *string1 = @"This is";
     NSString *string2 = @"Swift Language";

ForSwift:

    let string1 = "This is"
    let string2 = "Swift Language"

对于 ObjC AppendString:

     NSString *appendString=[NSString stringWithFormat:@"%@ %@",string1,string2];

对于 Swift AppendString:

    var appendString1 = "\(string1) \(string2)"
    var appendString2 = string1+string2

结果:

    print("APPEND STRING 1:\(appendString1)")
    print("APPEND STRING 2:\(appendString2)")

用 Swift 编写完整代码:

    let string1 = "This is"
    let string2 = "Swift Language"
    var appendString = "\(string1) \(string2)"
    var appendString1 = string1+string2
    print("APPEND STRING1:\(appendString1)")
    print("APPEND STRING2:\(appendString2)")