求大神细说一下typedef的理解，表示不太懂

[SUNKMOON]

新人还在高中，，表示这个东西没太看懂，，，我给一段代码看看吧，，，

一个链栈里面，，有一个


struct stack_node
{
。。。。。。
};

typedef struct stack_node stack_list;
typedef stack_list *slink;

这里面的这个结构体类型是干什么用的

麻烦看看，，感激不尽

[renwotao2009]

typedef给指定类型起一个别名

[小灸舞]

typedef struct stack_node stack_list;表示可以用stack_list替代struct stack_node
如：stack_list a等同于struct stack_node a;
typedef stack_list *slink;可以用slink替代stack_list *（注意*是跟着stack_list的）
如：stack_list *a等同于slink a;

http://www.cnblogs.com/afarmer/archive/2011/05/05/2038201.html

[赵4老师]

typedef typedef type-declaration synonym; The typedef keyword defines a synonym for the specified type-declaration. The identifier in the type-declaration becomes another name for the type, instead of naming an instance of the type. You cannot use the typedef specifier inside a function definition. A typedef declaration introduces a name that, within its scope, becomes a synonym for the type given by the decl-specifiers portion of the declaration. In contrast to the class, struct, union, and enum declarations, typedef declarations do not introduce new types — they introduce new names for existing types. Example // Example of the typedef keyword typedef unsigned long ulong; ulong ul; // Equivalent to "unsigned long ul;" typedef struct mystructtag { int i; float f; char c; } mystruct; mystruct ms; // Equivalent to "struct mystructtag ms;" typedef int (*funcptr)(); // funcptr is synonym for "pointer // to function returning int" funcptr table[10]; // Equivalent to "int (*table[10])();"

[StevenV6]

就是以后定义结构体变量时直接用后面那个别名定义声明就好