aaa zzz

property without a methodSee the example program belowClass Test:action= ' win the game ' #类属性print test.actiont=test () print t.actiontest.action= ' At least 1 point ' print Test.actionprint t.actiont.action= ' dont lose ' print test.actionprint t.actionThe results of the operation are as followsWin the gameWin the gameAt least 1 pointAt least 1 pointAt least 1 pointDont loseThe phenomenon can be summed up as: "Change the class properties, data properties, change data properties, class proper

- If you really want to understand C # code, the best way to do that is by understanding the code generated by the C # compiler. This is the focus of this chapter and the following two chapters. We will use a short C # program to uncover the mystery of IL and interpret the IL code generated by the compiler. In this way, we can "stone": first, we will reveal the mystery of IL, secondly, we will be more intuitive understanding of the C # programming language. We will first show a. cs file and t

☆Retrieve all table names and column names of the databaseSelect name from sysobjects where xtype = 'U'Select name from syscolumns where id = (select max (id) from sysobjects where xtype = 'U' and name = 'table name ')☆Recursive Data QueryRecursive query of SqlServer2005 and Oracle in SQL statementsI used Oracle before and thought that its recursive query is very useful. I studied SqlServer and found that it also supports recursive query in SQL.Example:The SQL statement of SqlServer2005 is as fo

1, coverage package implementation code Coverage (1) pip install coverage (2) Coverage run xx.py (test script file) (3) Coverage report-m print out Coverage Information Report (4) coverage in the console HTML generates a Htmlcov file in the same directoryfolder, open index.html in folders to view code coverage in a graphical interface2, Xpath Understanding(1) XPath is a language that looks for information in an XML document.XPath is used to navigate through elements and attributes in an XML docu

constant pool. So the relationship between C, Chenssy, pool chenssy should be: c--->chenssy---> Pool chenssy. The whole relationship is as follows: Through the above figure we can very clearly understand their relationship. So we modify the value in memory, and he changes it all. Summary: Although a, B, C, and Chenssy are different objects, we can understand them from the internal structure of string. String c = new String ("Chenssy"), although the content of C is created in the heap, but his

and used to display all parameters. The 3rd bytes provide the return type, which is assumed to be a simple type. The GetType function returns this type in string format. Here, we also assume that these parameters save simple value types. The for loop repeats this process, depending on the number of parameters, so that all parameters obtained by the function are displayed. The GetType function is used to return the type, while the paramarray array is used to provide the array name. The signature

empty file in the/tmp directory, zzz. Under root user name the following code test.c, put in the/tmp directory, compile the program, give the program root permissions. Under an ordinary user, run this program. Describe the situation you have observed,/TMP/ZZZ will this file be modified? Explain your observations.Code:#Include #Include #Include #Include #Include voidMain(){int FD;Assume That/tmp/

= $ value * 1 + $ num; arr2file ($ pat, $ value ); return $ value;} else return false;} public function getExtendedStats () {$ zzz = Txpath; $ nums = 0; $ mydir = dir ($ zzz ); // read the configuration file while ($ file = $ mydir-> read () {if ($ file! = ".") And ($ file! = ".. ") And (strstr ($ file ,". php ") {$ file = str_replace (". php ",'', $ file); $ files [] = $ file; $ nums ++ ;}$ mydir-> close

of parameter 1 is returned. For example, ifnull (null, "ljp"); returns "ljp ". Insert: the value of parameter 4 is placed in parameter 1 at the position specified by parameter 2, parameter 3 indicates that the next multiple characters starting from the position specified by parameter 2 in parameter 1 will be replaced by parameter 4. For example, insert ('abcdefgh', 4,3, 'zzz');-> 'abczzzgh '. Insert ('abcdefgh', 4, 2, '

-------------------- JSON is a data format that interacts with JS and does not carry the information that PHP has. So it can't be restored. You should use the PHP serialization function Class T { Public $var = 123;}$p = new T;$s = serialize ($p);$x = Unserialize ($s);Print_r ($x);T Object ( [var] = 123 ) ------Other Solutions-------------------- Thanks to the Moderator's reply! This is what happens after the object is serialized. O:4: "User": 2:{s:13: "useruser_id", s:1: "1"; s:13: "UserAcc

Reference http://blog.sina.com.cn/s/blog_62449fcf0100nfar.htmlThe Linux under tar command is extracted to the specified directory:#tar zxvf/bbs.tar.zip-c/zzz/bbs//The root directory under the Bbs.tar.zip decompression to/zzz/bbs, the premise to ensure that the existence of/zzz/bbs this directoryThis is a bit different from the CP command, and the CP command will

- In IL, a label is a name with a colon (that is,) at the end. It allows us to jump unconditionally from part of the code to another part. We often see this label in the IL code generated by the counter compiler. For example: IL_0000: ldstr　　　　　 "hi" IL_0005: call　　　　　　 void [mscorlib]System.Console::WriteLine(class System.String) IL_000a: call　　　　　　 void zzz::abc() IL_000f: ret The word in front of the colon is the label. In the program given belo

Function declaration and expression in js, js function declaration expression// Function declaration: function name (){}// Function expression: function name (writable or not) () {}: anonymous function expression// Function aaa () {}: function declaration// Var a = function aaa () {}: name function expression// Var a = function () {}: anonymous function expression(Function

One. Python's class attributes and instance properties are a point of attention1 classTestatt ():2AAA = 103 4 defMain ():5 #Case 16Obj1 =Testatt ()7Obj2 =Testatt ()8 Printobj1.aaa, obj2.aaa, Testatt.aaa9 Ten #Case 2 OneOBJ1.AAA + = 1 A Printobj1.aaa, obj2.aaa

the prototype chain of another object.For differences between the two methods, see JavaScript isPrototypeOf vs instanceof usage. Only use prototype chain for inheritance Disadvantages: 1. The prototype property of the reference type value will be shared by the instance; 2. When creating a child-type instance, parameters cannot be passed to the super-Type constructor. functionFather(){this.name ="father";this.friends = ['aaa','bbb'];}functionSon(){}So