大约有 40,000 项符合查询结果(耗时:0.0380秒) [XML]

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How can I reliably determine the type of a variable that is declared using var at design time?

...ainst just that statement. For example, suppose you have the method body: String x = "hello"; var y = x.ToCharArray(); var z = from foo in y where foo. and now we need to work out that foo is of type char. We build a database that has all the metadata, extension methods, source code types, and so...
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What is the best collation to use for MySQL with PHP? [closed]

...QL (most currently distributed versions) where functions always return the string using utf8_general_ci, causing problems if you're using another collation for your strings - see bugs.mysql.com/bug.php?id=24690 – El Yobo Feb 9 '11 at 10:49 ...
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“:” (colon) in C struct - what does it mean? [duplicate]

... struct { short a : 4; short b : 3; } test2; struct { char a : 4; char b : 3; } test3; struct { char a : 4; short b : 3; } test4; printf("test1: %d\ntest2: %d\ntest3: %d\ntest4: %d\n", sizeof(test1), sizeof(test2), sizeof(test3), sizeof(test4)); test...
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Most efficient way to make the first character of a String lower case?

What is the most efficient way to make the first character of a String lower case? 11 Answers ...
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How can I programmatically get the MAC address of an iphone

... to use it InitAddresses(); GetIPAddresses(); GetHWAddresses(); int i; NSString *deviceIP = nil; for (i=0; i<MAXADDRS; ++i) { static unsigned long localHost = 0x7F000001; // 127.0.0.1 unsigned long theAddr; theAddr = ip_addrs[i]; if (theAddr == 0) break; if (theAddr...
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How to export query result to csv in Oracle SQL Developer?

... CSV Export does not escape your data. Watch out for strings which end in \ because the resulting \" will look like an escaped " and not a \. Then you have the wrong number of " and your entire row is broken. ...
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How to create a GUID/UUID in Python

... Well, as you can see above, str(uuid4()) returns a string representation of the UUID with the dashes included, while uuid4().hex returns "The UUID as a 32-character hexadecimal string" – stuartd Jan 30 '18 at 10:08 ...
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Quick Way to Implement Dictionary in C

...ng it from scratch. I don't want it to be generic either -- something like string->int will do. But I do want it to be able to store an arbitrary number of items. ...
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How to remove new line characters from a string?

I have a string in the following format 11 Answers 11 ...
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Encode String to UTF-8

I have a String with a "ñ" character and I have some problems with it. I need to encode this String to UTF-8 encoding. I have tried it by this way, but it doesn't work: ...