大约有 46,000 项符合查询结果（耗时：0.0683秒） [XML]
How to disable UITextField editing but still accept touch?
...tField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
Return NO from this, and any attempt by the user to edit the text will be rejected.
That way you can leave the field enabled but still prevent people pasting text into it.
...
Constructors in Go
...n.
Supposing you have a struct like this :
type Thing struct {
Name string
Num int
}
then, if the zero values aren't fitting, you would typically construct an instance with a NewThing function returning a pointer :
func NewThing(someParameter string) *Thing {
p := new(Thing)
...
C# Test if user has write access to a folder
...ate in the day for this post, but you might find this bit of code useful.
string path = @"c:\temp";
string NtAccountName = @"MyDomain\MyUserOrGroup";
DirectoryInfo di = new DirectoryInfo(path);
DirectorySecurity acl = di.GetAccessControl(AccessControlSections.All);
AuthorizationRuleCollection rule...
What does an exclamation mark mean in the Swift language?
...wn as forced unwrapping of the optional’s value:
Example
let possibleString: String? = "An optional string."
print(possibleString!) // requires an exclamation mark to access its value
// prints "An optional string."
let assumedString: String! = "An implicitly unwrapped optional string."
print...
Switch on Enum in Java [duplicate]
...nd would make for some convenient code. Also this question could apply to String 's. You can switch on a char , but not a String ...?
...
What do 'lazy' and 'greedy' mean in the context of regular expressions?
...
'Greedy' means match longest possible string.
'Lazy' means match shortest possible string.
For example, the greedy h.+l matches 'hell' in 'hello' but the lazy h.+?l matches 'hel'.
share...
How can I verify if a Windows Service is running
...
private static bool ServiceExists(string serviceName) { return ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == serviceName) != null; }
– Dmitry Pavlov
Aug 15 '13 at 19:...
Why is the Java main method static?
...
public class JavaClass{
protected JavaClass(int x){}
public void main(String[] args){
}
}
Should the JVM call new JavaClass(int)? What should it pass for x?
If not, should the JVM instantiate JavaClass without running any constructor method? I think it shouldn't, because that will specia...
How to read from standard input in the console?
... bufio.NewReader(os.Stdin)
fmt.Print("Enter text: ")
text, _ := reader.ReadString('\n')
fmt.Println(text)
As it works on my machine. However, for the next block you need a pointer to the variables you're assigning the input to. Try replacing fmt.Scanln(text2) with fmt.Scanln(&text2). Don't use...
Converting many 'if else' statements to a cleaner approach [duplicate]
...ke this for each converter. Then you could set up a map like this:
Map<String, Converter> mimeTypeMap = new HashMap<String, Converter>();
mimeTypeMap.put("audio/mpeg", new MpegConverter());
Then your convertToMp3 method becomes like this:
Converter converter = mimeTypeMap.get(mimeTy...