treehouse c# review

[C #] C # knowledge Review,Exception description C # The exception handling function of the language helps you handle exceptions or exceptions when the program is running. Exception Handlingtry,catchAndfinallyAnd other keywords to try to execute some operations to handle failures. Of course, although these operations m

[C #] C # knowledge Review,Do you really understand exceptions? Directory Exception description Exception features Usage exception Try-catch-finally for Exception Handling Catch blocks with exceptions Release Finally blocks of resources I. exception description When writing a program, we accidentally (or technically insufficient), which leads to

[C #] C # knowledge Review,Packing and unpacking directory Performance Packing Unpack Introduction Packing is to convert the value typeobjectType or any interface type implemented by this value type. When the CLR loads the value type, the value is encapsulated into System. Object, and then stored on the managed stack. The value type is extracted from the obj

details of my [C + + PP (Edit 6)] also has a specific explanation, probably most of the repetition, but in order to summarize and review, review the C + + The difference between language and C language and some new features and related concepts, decide or write down, master

[C #] C # basic review,C # basic review-anonymous method directory Introduction Use range of parameters for anonymous methods Delegation example Introduction In versions earlier than C #2.0, we create the unique form of deleg

[C #] C # knowledge Review,Learn to use exceptions In C #, errors that occur during runtime in the program will be continuously transmitted in the program. This mechanism is called "exception ". An exception is usually caused by the error code and caught by the code that can correct the error. Exceptions can be caused

[C #] C # knowledge Review,C # knowledge Review-delegate [Blogger] Anti-bone Aberdeen [original] http://www.cnblogs.com/liqingwen/p/6031892.htmlDirectory What's Commission Delegation attributes Use delegate What's Commission Delegate indicates a reference type for metho

C # Knowledge review-expression tree Expressions TreesDirectory Brief introduction Lambda expressions Create an expression tree API to create an expression tree Parsing an expression tree Persistence of expression trees Compiling an expression tree Executing an expression tree Modify an expression tree Debugging Brief introductionExpression trees represent code

thread-safe. groupby groupingSuppose you want to observe the number of bugs that the program appears in, grouping them into categories:Bugs. GroupBy (bug = Bug . AssignedTo) new {Developer = list. Key, Count = list. Count ()}) = = X.count);The result is a igroupingWhen you study enumerable classes, you tend to feel confused about what happened--for example, an overloaded version of GroupBy has 4 type parameters and 5 "normal" parameters (3 are delegates). But don't

things.Other FAQsImportantData type issues:(1) Is there an error in the data type of the variable?(2) Are there assignments of different data types?(3) Is there a comparison of different data types?ImportantVariable Value problem:(1) Is there an error in the initialization or default value of the variable?(2) Are there overflow or underflow of variables?(3) is the accuracy of the variable sufficient?ImportantLogical judgment Question:(1) is the comparison invalid due to the accuracy reason?(2)

return {};4 Else if(expencted = =Actual)5 return{"Functionx","OK"};6 Else 7 return{"Functionx", expected, actual};8}1 int arr[]; 2 int *p1[]; 3 int (*P2) [P2] is a pointer to an array of 10 integers3.assert preprocessing macro is actually a preprocessing variable that behaves like an inline function, and the Assert macro uses an expression as his condition: assert (expr); First, if the expression is false, Assert output information and abort the program's knowledge, if t