effect definition

Solo windLinks: C Language macro definitions (2)1. How do I distinguish between macro names and macro strings in a macro definition? What should be noted for macros with parameters?In the macro definition, the macro name and macro string are distinguished by a "space", in which a space can have a significant effect on the result of the extension. When the compile

css| Project This tutorial mainly explains the definition of the style of common tags Li {list-style-image:url (images/disc.gif);} This style definition for Li is to use a picture for a list item instead of a small dot that is displayed. Of course, you can also display other effects, see the following definition in detail: 　　CSS

in the source file Line3 Import This sentence has thrown an exception, the program has been parked here!). ), but the sixth line in the import daliywork error . This is very important and can be explained by the following illustrations (PS: Drawing is good):Although the introduction of the content, including all the definition of content, but because the introduction of the file will also happen , so we still do not realize the

water function, you can meet the bubble surface and cooking two process of boiling water function needs, both time and effort. Since the function has so many benefits, let's look at how to define and use the function.Figure 5-1 Wrapping the program into a box, divide and conquerDeclaration and definition of the 5.1.1 functionTo use variables to express data in a program, we must declare and define the variables before we can use them. Similarly, to u

function is to replace the macro with ++max (A,B), the macro expansion becomes + + (a) > (b)? (a):(B), the operation priority is also wrong. (4) If the function argument is an expression, the invocation of a normal function is not the same as the replacement process of a function macro definition. The value of the argument expression is then passed to the formal parameter, and if the argument expression has side

second method corresponds to#ifndef definesDo_something ()#endif "2" DEFS =-dtest_add-dtest_sub=1 in order to illustrate the problem, two different ways of writing are used here. At this point the two printing functions are executed "3" CFLAGS + = $ (DEFS) appended to CFLAGS, where you need to emphasize that CFLAGS is just a variable, can be named any legitimate name, as long as the compilation process to reference the parameter. $ (CC)$ (CFLAGS)$ (INC)-o [email protected]-C $5. Execution Proce

inline functions instead of all the macro code, "assert assert" I am afraid is the only exception. An assert is a macro that works only in the debug version and is used to check for situations where "should not" occur. In order not to cause differences in the debug and release versions of the program, the assert should not have any side effects. If assert is a function, it will cause a difference between the debug version and release version because the function call can cause memory and code t

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6.3 first recognized class Class introduces some new syntax: three new object types and some new semantics.6.3.1 class definition syntax The simplest form of class definition is as follows: Class ClassName: . . . The class definition is the same as the function definition (def statement). It must be executed befo

Ask questions:If you have such a template:class test{public: static std::string info;};What is right (by compiling) for several of the following definitions?Template stringtestint>::info ("123"); templatestringTest"123"); templatestringTest:: Info;templatestringtestint>:: info; templatestringtestint>:: info (); templatestringTestIn order not to affect the analysis and judgment, I put the answer color into a relatively light color, the following is the answer: Template Template

declares that there is something associated with this name, and that it is of this type, tells the compiler I want to use it, and expects it to be defined in a certain place. A definition definition is the provision of all necessary information (memory size) so that it can create an entire entity. We must understand that once a definition is declared, a function,

Workflow learning-three steps of Activiti process definition management and three steps of activitiI. Preface In the previous article, we made a macro introduction to Activiti through a small demo, which gave you an overall understanding of Activiti. In this article, we will learn the CRUD of specific process definition management. Ii. Text What is the process definiti