Auto local variable (auto Save) Break unconditionally exits the most inner loop of the program Select an item in the case switch statement Char single-byte integer data const defines a constant value that cannot be changed Continue interrupts this cycle and turns to the next cycle Default selection in the defaults switch statement Do for composing do.....while loop statements Double defines the dual-precision floating-point data a Else constituent if.....else Selection Program structure Enum enum extern describes the global variables in other program modules Float defines single-precision floating-point data For to make a For loop statement Goto Form GOTO Transfer structure If composition IF....ELSE selection structure int basic integral type data Long-length integer data REGISTERCPU Variables for internal storage Return returns the return value of the function Short shorter integer data Signed signed number Sizoef calculating the number of bytes consumed by an expression or data type Static variable definition struct defines struct type data Switch forms the switch selection structure typedef redefining data types Union Union type data Unsigned defining unsigned data void defines untyped data Volatile the variable can be implicitly changed in the execution of the program While is used to form a do...while or while loop structure |