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(@ "array1[0] =%@, Retain_array1.retaincount =%d", array1[0], (int) array1.retaincount); Assign the array by copy to array2 nsarray *array2 = [array copy]; NSLog (@ "array2[0] =%@, Copy_array.retaincount =%d", array2[0], (int) array2.retaincount); Assign the value of array to array3 nsarray *array3 = [array mutablecopy] by mutablecopy Way; NSLog (@ "array3[0] =%@, Mutablecopy_array3.retaincount =%d", array3[0], (int) array3.retaincount); Output each address NSLog (@ "Outp
between different factories within the company or different factories in different companies. Mobile Type 311 can only be targeted at the same plant location between the different allocation Tips: Mobile Type 301 support inter-company redeployment, one company inventory increase while another inventory reduction, but need to pass the transaction code Obya define inter-company settlement account 2, directly through the mobile type two-step processing Transaction code MB1B, enter accept facto
R ={3,3}; NSLog (@ "%@", [str2 substringwithrange:r]);//Where to intercept, intercept how long the string NSLog (@ "%@", [str1 stringbyappendingstring:str2]);//string concatenation NSLog (@ "%@", [str1 stringbyappendingformat:@ "---%@", str2]);//String Format stitching NSLog (@ "%@", [str1 stringbyreplacingoccurrencesofstring:@ "three" withstring:@ "789456"]);//String substitution nsstring *STR4 = @ "Literary Youth"; NSString *STR5 = [STR4 stringbyreplacingoccurrencesofstring:@ "literary"
that the current controller needs to use. First look at the following section of code: import Javax.validation.Valid;Import Org.springframework.stereotype.Controller;Import Org.springframework.validation.BindingResult;Import Org.springframework.validation.DataBinder;Import Org.springframework.web.bind.annotation.InitBinder;Import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class Usercontroller {@InitBinderpublic void Initbinder (DataBinder binder) {Binder.setvalidat
6. Get all the methods of a class:U_int count;Method * methods = Class_copymethodlist ([Customclass class], count);for (int i = 0; i SEL name = Method_getname (Methods[i]);NSString * StrName = [nsstring stringwithcstring:sel_getname (name) encoding:nsutf8stringencoding];NSLog (@ "%@", strName);}Operation Result:2014-10-20 11:57:27.884 runtimetest[10939:303] Fun12014-10-20 11:57:27.886 runtimetest[10939:303]
change :( NSDictionary *) change context :( void *) context {if ([keyPath isEqual: @ "money"]) {NSString * new = [change objectForKey: @ "old"]; NSString * old = [change objectForKey: @ "new"]; NSLog (@ "% @", new, old);} @ end Bank Card Type: BankCard. h #import BankCard. m # Import "BankCard. h "@ implementation BankCard-(id) init {self = [super init]; if (self) {_ money = 10.0f; // The timer is used here. It doesn't matter if you don't understand it, you can call the balanceUpdate functi
:10 y1:288 y2:303====161=====x1:12 x2:22 y1:288 y2:303====162=====x1:24 x2:34 y1:288 y2:303====163=====x1:36 x2:46 y1:288 y2:303====164=====x1:48 x2:58 y1:288 y2:303====165=====x1:60 x2:70 y1:288 y2:303====166=====x1:72 x2:82 y1:2
results are as follows:2014-07-06 20:19:07.274 playgroundstub_osx[4110:303] {five = Echo;four = Delta;one = Alpha;three = Charlie;two = Bravo;} 2014-07-06 20:19:07.281 playgroundstub_osx[4110:303] three = charlie2014-07-06 20:19:07.296 PlaygroundStub_OSX[ 4110:303] one-alpha2014-07-06 20:19:07.300 playgroundstub_osx[4110:303
:@""];MULogTimeintervalPauseAndLog(@"for statement allKeys");[testDic enumerateKeysAndObjectsUsingBlock:^(idkey, idobj, BOOL*stop) {[sum appendString:obj];} ];MULogTimeintervalPauseAndLog(@"enumeration");} Here are the test results:Test case '-[looptesttests Testarray] ' started.2012-08-02 17:14:22.061 otest[388:303] init:1000002012-08-02 17:14:22.062 otest[388:303] Mulogtimeintervalbegin:arraytest2
to the new location.HTTP Status Code 302 (temporary move) The server is currently responding to requests from different locations, but the requestor should continue to use the original location for future requests.HTTP Status Code 303 (view other locations) The server returns this code when the requestor should use a separate GET request for the different locations to retrieve the response.HTTP status Code 304 (not modified) The requested webpage has
Error message:sudo pip Install cryptographyPassword: The directory '/users/wanghao/library/caches/pip/http ' or its parent directory was not owned by the current user and the CA Che has been disabled. Please check the permissions and owner for that directory. If executing pip with sudo, your may want sudo ' s-h flag. The directory '/users/wanghao/library/caches/pip ' or its parent directory isn't owned by the current user and caching whe Els has been disabled. Check the permissions and owner of
Dict.allkeys is to get all the key collection Kys, the ⑨ line code is the traversal key collection Kys.The output results are as follows:[HTML]View Plaincopy 2014-07-06 20:19:07.274 playgroundstub_osx[4110:303] { five = echo; four = Delta; one = Alpha; three = Charlie; both = Bravo; } 2014-07-06 20:19:07.281 playgroundstub_osx[4110:303] three = Charlie 2014-07-06 20:19:07.296 play
How to reorganize the original two-dimensional array into the following form? Original array Array ([0] = = Array ([1–2 section] = [3–4 section] + Web site development and Maintenance _ weekly _xxxx_01-15 week _s1-205 [第5-6 festival] =gt ; Linux Advanced Application _ weekly _xxxx_01-15 week _a-910 [7–8 Festival] + network Security _ every bi-weekly _xxxx_01-15 weeks _a-507 [第9-10 Festival] and [1] = = Array ([1–2 Festival] = IPV6 Technology _ weekly _xxxx_01-14 week _s1-
treated as a temporary replacement instead of permanent. Note that the corresponding status information in HTTP1.0 is "Moved temporatily".When the status code appears, the browser can automatically access the new URL, so it is a useful status code.Note that this status code can sometimes be used with 301 substitutions. For example, if the browser mistakenly requests Http://host/~user (the trailing slash is missing), some servers return 301, and some return 302.Strictly speaking, we can only ass
: 303] The load method in ObjectTest is called !! 2. + (void) initialize; this method is called when the class is used for the first time. The test is not called for the second time: override the initalize method // override the initialize method, the + (void) initialize {NSLog (@ "initialize method is called when the class is used for the first time (the class is instantiated for the first time )! ");} Running result: 09:27:53. 767 HelloOC [624:
If you want to copy a custom Class Object using the copy or mutableCopy method, the class must implement Console output: 2014-02-01 01:11:09.087 Chocolate[951:303] -[Desserts copyWithZone:]: unrecognized selector sent to instance 0x1001099e02014-02-01 01:11:09.089 Chocolate[951:303] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[Desserts copyWithZone:]: unrecognize
How can we recompose the original two-dimensional array in the following form? The format of the original array {code...} after the reorganization is: {code...} How to recombine the original two-dimensional array in the following form? Original Array Array ([0] => Array ([section 1-2] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [Section 5-6] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ A-910 [Section 7-8] => network security _ ev
(@"allo single3_P = %p", single3);NSLog(@"copy single4_P = %p", single4);NSLog(@"mutableCopy single5_P = %p", single5);NSLog(@"retain single6_P = %p", single6); ? ? The running result is as follows: 12345678 16:04:44. 207 memory [20664: 303] Singleton PS: I'm a test method in singleton mode !!2014-08-07 16:04:44.207 Memory[20664:303] single_retainCount = 184467440737095516152014-08-07 16:
the user bookmarks a URI, the 302 response is not to update the bookmark like 301.303 See otherThe status code indicates that the requested resource should be obtained by using the Get method because another URI exists for the resource that corresponds to the request. 303 differs from 302 in that 302 is the method that does not change the request, and if the request method is post, the redirected request should also be post. For
SLF log interface, implemented with SLF4J NODEP, log4jHibernate we generally use log4j, so delete the previously created SLF4J-NOP package in the Hibernate package, add Log4j-1.2.17.jarNow Hibernate's package has SLF API jar, cannot and log4j automatically match, so in the middle need an interface, then add slf4j-log4j package (1.5.8)This allows you to see statements such as built-in tables when you run the interface.The DDL statement comes out:14:00:20,587 INFO schemaexport:179-exporting gener
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