zprint

For example, now I have one of the simplest addition (JIAFA) functions:def jiafa (x, y):z = x + yReturn ZPrint (JIAFA)This is very simple, you can see that the output equals 3.The next question is, how do I calculate if I want to add a number that is not a fixed number?At this point, the use of args and *kwarg can help us solve this problem.*args: Can be understood as only one column of the table, the length is not fixed.**kwargs: Can be understood as

1 def name (para)def myabs (x): if x>0: return x Else: return -X2 lambda expressionA small function that declares an anonymous function without a nameLambda x,y,z:x+y+zprint#6L = [(lambda x:x**2), (Lambda x:x**3)]print#(9, +)Class 3class Car: def infor (self): Print ("This wasa car"=#This isa car4 Private members and public membersTwo underscore "__" starts with a private property, and the other is public5 writing con

syntax Local Variables and variables---Local variables (start with @)Format: DECLARE @ variable name type--set @id = ' 10010001 'Select @id = ' 10010001 ' ---Global variables (must start with @@ 开头Format: Declare @@ 变量 name typeCode: SELECT @ @id = ' 10010001 ' --if ELSEDECLARE @x int @y int @z intSelect @x = 1 @y = 2 @z=3If @x > @yprint ' x > y '--prints the string ' x > Y 'else if @y > @zprint ' Y > z 'else print ' Z > y ' --caseUse PanguUpdate emp

data access plans for queriesOpen--Retrieving query results opens a cursorFETCH--Retrieves a row of query resultsClose--Closes the cursorPREPARE-Preparing SQL statements for dynamic executionExecute--Execute SQL statements DynamicallyDESCRIBE--Describe the prepared query---local variablesDECLARE @id char (10)--set @id = ' 10010001 'Select @id = ' 10010001 '---global variables---must start with @@--if ELSEDECLARE @x int @y int @z intSelect @x = 1 @y = 2 @z=3If @x > @yprint ' x > y '--prints the

--Granting user accessDeny--Deny user accessREVOKE--Remove user access rights--Transaction controlCOMMIT--End the current transactionROLLBACK--Abort the current transactionSET TRANSACTION--Define the current transactional data access characteristics--Programmatic SQLDECLARE--Setting cursors for queriesExplan--describing data access plans for queriesOpen--Retrieving query results opens a cursorFETCH--Retrieves a row of query resultsClose--Closes the cursorPREPARE-Preparing SQL statements for dyna