如何结合两个NSString？

Question

I have the following two NSString :

NSString *latitudeString, *longitudeString;

latitudeString = @"50.1338";

and

longitudeString = @"8.91583";

What I want to obtain is a NSString that looks like this: 50.1338,8.91583.

How do I obtain that?Thanks

IMPORTANT: The values I showed are only for the purpose of better understanding, ussually latitudeString and longitudeString have random values.

Answer 1

为了得到你想要的东西，你可以使用

NSString *coordinates = [NSString stringWithFormat:@"%@,%@", latitudeString, longitudeString];

Answer 2

只需使用stringWithFormat方法

[NSString stringWithFormat:@"%@,%@", latitudeString, longitudeString];

Answer 3

A thousand years late:

[latitudeString stringByAppendingFormat:@",%@", longitudeString]

Would slightly reduce runtime parsing costs and, historically, would have given you greater type safety (before the compiler checked type strings). So some of us old timers got used to it and still mentally make the fairly feeble performance argument to justify what's comfortable.

[@[latitudeString, longitudeString] componentsJoinedByString:@","]

May also be preferable if you'd rather raise an exception upon one string being missing than silently produce something nonsensical.

Answer 4

试试这个

NSString *combine = [NSString stringWithFormat:@"%@,%@", latitudeString, longitudeString];

Answer 5

也许它更好：

[NSString stringWithFormat:@"%.4f,%.4f",[latitudeString floatValue],[longitudeString floatValue]];

Answer 6

String* coord = [NSString stringWithFormat:@"%@,%@", latitudeString, longitudeString];

Answer 7

[NSString stringWithFormat:@"%@,%@",latitudeString,longitudeString];