use of static variable

The 1.static global variable is only initialized once, preventing it from being referenced in other file units;2.static Local variables are initialized only once, the next time based on the last result value;The 3.static function has only one copy

Using the static modifier to declare static members that belong to the type itself, rather than to a particular object, can be used for classes, fields, methods, properties, operators, events, and constructors, but not for indexers, destructors, or

Original blog, reprint please indicate the source--Zhou Xuewei http://www.cnblogs.com/zxouxuewei/Static is used in two ways: static in process-oriented programming and static in object-oriented programming. The former applies to ordinary variables

The type descriptor of a static variable is static, and a non-static variable instead of a type specifier is not static. This article mainly introduces the difference between static and non-static variables, I hope to help you to see

1, can local variables and global variable duplicate? A: Yes, the local will screen the overall situation. To use a global variable, you need to use the "::" Local variables can have the same name as global variables, and when referenced within a

the difference between static variable and ordinary variable The description of the global variable (external variable) before being labeled static constitutes a static global variable. The global variable itself is the static storage mode, static

First, the syntax definition difference: the static keyword must be added before the static variable, but not before the instance variable.Differences during program running: instance variables belong to the attributes of an object. You must create

1. Constants: Also known as final variables, can only be assigned once in the entire programfinal int num = 1215;num = 1216; //error, can only be assigned once2. Class member variable: A variable that is not defined in a method is a member variable,

Static Keywords of C ++ The static function of C ++ has two usage methods: static in process-oriented programming and static in object-oriented programming. The former applies to common variables and functions, and does not involve classes. The

Static global Variables Definition: Before the global variable, with the keyword static the variable is defined as a static global variable. Characteristics:A, the variable allocates memory in the global data area.B, initialization: If not