C语言有多少个关键字
标准C++关键字如下：
"and ","and_eq ","asm ","auto ","bitand ","bitor ",
"bool ","break ","case ","catch ","char ","class ",
"compl ","const ","const_cast ","continue ","default ","delete ",
"do ","double ","dynamic_cast ","else ","enum ","explicit ",
"export ","extern ","false ","float ","for ","friend ",
"goto ","if ","inline ","int ","long ","mutable ",
"namespace ", "new ","not ","not_eq ","operator ","or ",
"or_eq ","private ","protected ","public ","register ","reinterpret_cast ",
"return ","short ","signed ","sizeof ","static ","static_cast ",
"struct ","switch ","template ","this ","throw ","true ",
"try ","typedef ","typeid ","typename ","union ","unsigned ",
"using ","virtual ","void ","volatile ","wchar_t ","while ",
"xor ","xor_eq ",
共有49个一共32个关键字。。。。
auto ：声明自动变量 double ：声明双精度变量或函数 int： 声明整型变量或函数 struct：声明结构体变量或函数 break：跳出当前循环 else ：条件语句否定分支(与 if 连用) long ：声明长整型变量或函数 switch :用于开关语句 case：开关语句分支 enum ：声明枚举类型 register：声明寄存器变量 typedef：用以给数据类型取别名 char ：声明字符型变量或函数 extern：声明变量是在其他文件正声明 return ：子程序返回语句(可以带参数，也可不带参数) union：声明共用数据类型 const ：声明只读变量 float：声明浮点型变量或函数 short ：声明短整型变量或函数 unsigned：声明无符号类型变量或函数 continue：结束当前循环，开始下一轮循环 for：一种循环语句 signed：声明有符号类型变量或函数 void ：声明函数无返回值或无参数，声明无类型指针 default：开关语句中的“其他”分支 goto：无条件跳转语句 sizeof：计算数据类型长度 volatile：说明变量在程序执行中可被隐含地改变 do ：循环语句的循环体 while ：循环语句的循环条件 static ：声明静态变量 if:条件语句
C语言关键字有哪些？
break跳出掌握语句 casewhile掌握用 char字符型 const常量 continue跳过本循环并执行下一次循环掌握 defaultwhile地else状况类似 do相对while先执行后判别 double双精度 elseif语句内地..按字面解释 enum枚举 extern引用外部变量 float单精度 for循环 goto这个是语句掌握...没用过..应当是向case一样地..跳到标签执行 if判别 int整型 long长整型 register寄存器变量 return返回值 short短整型 signed有符号 static静态声明 sizof能得到内存占用 struct结构 switch=.=就是掌握,和case,default一同 typedef能够创建自己地类型 union怎么说不知道...和结构差不多..但是公用内存 unsigned无符号 void无返回值 while循环
C语言里有32个关键字：
基本数据类型：
void/int/char/float/double/signed/unsigned/short/long/
sizeof/typedef/enum
数据对象存储方式：
auto/static/extern/regiter/const/"不可变量"
流程控制：
if/else/do/while/goto/for/break/continue/switch/case/default/return/
定义复合数据类型：
struct/union/
标签：语句,语言,函数,关键字,循环,小写,声明,变量 From： https://blog.51cto.com/yetaotao/5789458