一 Predefined Functions：http://www.keil.com/support/man/docs/uv4cl/uv4cl_df_predeffunct.htm
Mainly triangular / inverse trigonometric function calculations on / index calculation, reading and writing in the specified address byte / word / floating point / long integer, the random number, the print output and input, delay and delay function (function call signal)
Two of The the DEFINE Command Creates A Symbol of A type specified in Toolbox, and perform operations http://www.keil.com/support/man/docs/uv4cl/uv4cl_cm_define.htm
DEFINE BUTTON "My Registers", "MyRegs ()" // Customize Toolbox to debug
Kill Button ID /*删除ID*/
ESC Undo command line
Three user-defined functions: the User Functions Should not the Invoke Signal Functions or at The Built-in function twatch .
FUNC return_type fname (parameter_list) {
statements
}
three