大约有 42,000 项符合查询结果(耗时:0.0173秒) [XML]

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iphone/ipad: How exactly use NSAttributedString?

...t like that: NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"Hello. That is a test attributed string."]; [str addAttribute:NSBackgroundColorAttributeName value:[UIColor yellowColor] range:NSMakeRange(3,5)]; [str addAttribute:NSForegroundColorAttributeName value:...
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Differences between Proxy and Decorator Pattern

...more clear. Proxy first: public interface Authorization { String getToken(); } And : // goes to the DB and gets a token for example public class DBAuthorization implements Authorization { @Override public String getToken() { return "DB-Token"; } } And there is a call...
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How to write iOS app purely in C

...msgSend(objc_msgSend(objc_getClass("NSAutoreleasePool"), sel_registerName("alloc")), sel_registerName("init")); // Notice the use of CFSTR here. We cannot use an objective-c string // literal @"someStr", as that would be using objective-c, obviously. UIApplicationMain(argc, argv, nil, ...
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PostgreSQL, checking date relative to “today”

...days, cast now()::date as Alex Howansky suggested. – tokenizer_fsj Jul 4 '19 at 21:40 1 @tokenize...
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What is the difference between LL and LR parsing?

... Predict: Based on the leftmost nonterminal and some number of lookahead tokens, choose which production ought to be applied to get closer to the input string. Match: Match the leftmost guessed terminal symbol with the leftmost unconsumed symbol of input. As an example, given this grammar: S ...
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How do I split a string on a delimiter in Bash?

...john@home.com;*;broken apart". In short: this approach will break, if your tokens contain embedded spaces and/or chars. such as * that happen to make a token match filenames in the current folder. – mklement0 Apr 24 '13 at 14:08 ...
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What is the claims in ASP .NET Identity

...The user requests an action. The relying party (RP) application asks for a token. The user presents the credentials to the issuing authority that the RP application trusts. The issuing authority issues a signed token with claims, after authenticating the user’s credentials. The user presents the t...
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How to upload a file in Django? [closed]

...t' %}" method="post" enctype="multipart/form-data"> {% csrf_token %} <p>{{ form.non_field_errors }}</p> <p>{{ form.docfile.label_tag }} {{ form.docfile.help_text }}</p> <p> {{ form.docfile.errors }} ...
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Should I store entire objects, or pointers to objects in containers?

... storing pointers into vector can be efficient if used along with a custom allocator for the pointees. The custom allocator has to take care of the cache locality, for example using placement new (see en.wikipedia.org/wiki/Placement_syntax#Custom_allocators). – amit ...
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The definitive guide to form-based website authentication [closed]

...one of the most common pitfalls, DO NOT STORE THE PERSISTENT LOGIN COOKIE (TOKEN) IN YOUR DATABASE, ONLY A HASH OF IT! The login token is Password Equivalent, so if an attacker got their hands on your database, they could use the tokens to log in to any account, just as if they were cleartext login-...