ginger grammar review

...");Ten One }; A - //Call Block - the Say1block (); - -}No return value has parametersC Language Functions:1 // no return value with parametric function 2 3 void say2 (int age ) {45 NSLog (@ "I ' am%d year old! " , age); 6 7 } // called Say2 ();OC code block:1 //2. No return value with parameter block2 3 voidtest2 () {4 5 6 void(^say2block) (int) = ^(intAge ) {7 8NSLog (@"I ' am%d year old!", age);9 Ten }; One A -Say2block ( -); - the - -}There are retu

can only access the static field, and you can call only the other static methods in the class. A non-static method must first create an instance before the methods can be called on the object.To create a shared field:When a field is defined as static, you can create a field that can be shared among all objects of the class. Modifying a static field will work for all objects. Call a static field to make a call using the class title as a prefix.To create a static field using the Const keyword:The

Declaring enumerations:Enum Season{spring,summer,fall,winter}If you do not specify a constant integer type for enumerating an enumerated literal constant, the compiler automatically assigns a value to him that is older than the previous enumerated literal constant.Enum Season{spring=1,summer,fall,autumn=fall,winter}Select the basic type of enumeration:Enum Season:short{spring,summer,fall,winter}Declaration structure:struct TIME{private int hours,minutes,seconds;Public time (int hh,int mm,int SS)

are listed as false values: false,null,undefined, empty string ' ', number 0, number Nan, and all other values are true, including true, "false" There are two types of loop statements, one for the normal for loop, and one for the in statement, which enumerates all the property names of an object. Remember is the property name Oh, not the property value, not the Property object. You can use the Obj.hasownproperty ("name") method to determine if obj has an object of this property. The

Pop-up window:　　Alret ("What to Eject"); Don't make sure the page doesn't go down after it pops up.　　Confirm ("What to Eject"); OK dialog box, click OK to return True, point cancel returns false, available variables accept　Prompt ("Hint text to display"); pops up a dialog box that allows you to enter contentPrompt ("Lose a number come in", "can only be a number");　　Basic syntaxBasically consistent with C # syntaxbreak; jump out of the current loopContinue; skip this cycleType conversions　　　var a

(): voidDescription DescriptionStop Asset Importing. This lets your group several asset imports together into one larger import.Stop the resource import. This enables you to combine multiple resources into a larger import.Assetdatabase.validatemoveasset Verifying Mobile Resourcesstatic function validatemoveasset (oldpath : String, NewPath : string): StringParameters parameters OldPathThe path where the asset currently residesThe path where the current resource is located NewPathThe

If statement:An expression in an If statement must be placed in a pair of parentheses, and the expression must be a Boolean expression.Compare Time Type variables:Using the Compare method in a DateTime classSwitch statement:You can use switch statements only for basic data types, such as int and stringThe case label must be a constant expression, such as 23, "23"There is no statement between case labels that can omit break to reach passthrough, but if there is a statement then use the break stat

Properties can be defined in structures, classes, and interfaces;Private int A; Public int a{getreturn A; Setthis. a=value;}A property can be static, but its encapsulated fields must also be static, and the This keyword cannot be used in static properties;Read-only properties and write-only properties are only get or set;To declare a property in an interface:int x{get; Set;}Use the display interface to implement the same method of accessing the property when the method is used in the interfac

What is an array?An array is an unordered sequence of elements, and all elements in an array have the same type.Declaring an array variable:Int[] A; the size of the array is not part of the Declaration;To create an instance of an array:A=new Int[3];Initialize the array variable:Int[] A=new int[2]{1,2};Int[] a={1,2};Time[] schedule={new time, New Time (5,30)};To create an implicitly-typed array:var name=new[]{new {name= "John", age=44},new {name= "Diana", age=45}};To iterate over an array:You can

sentenceSELECT ' 0000 ') Cardno from T_user WHERE Id>ten;4. Convert data type// Type Conversions SELECT CAST as CHAR from // stitching An empty string, implicitly converting SELECT CONCAT (Id,' from T_user;5, pagination and statistics of the number of rows//Method OneSELECTTAB.*, @i Total from (SELECT (@i:= @i + 1) asRowNum, B.* fromBook B, (SELECT @i:= 0) asit) TABWHERETAB. RowNumbetween 5 and Ten//Method two:SET @i=0;SELECTTAB.*, @i