411 REFERENCE · Wikibooks
Ring/Lessons/Getting Input
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Getting Input
We can get input from the keyboard using
The Give Command
The GetChar() Function
The Input() Function
Give Command
Syntax:
Give VariableName
Example:
See "Enter the first number : " Give nNum1
See "Enter the second number : " Give nNum2
See "Sum : " + ( 0 + nNum1 + nNum2 )
Output:
Enter the first number : 3
Enter the second number : 4
Sum : 7
GetChar() Function
We can get one character from the standard input using the GetChar() function
Syntax:
GetChar() ---> Character
Example:
While True
See "
Main Menu
(1) Say Hello
(2) Exit
"
Option = GetChar()
GetChar() GetChar() # End of line
# the previous two lines can be replaced with the next line
# Give Option
if Option = 1
see "Enter your name : " give cName
see "Hello " + cName
else
bye
ok
End
Input() Function
We can get input from the keyboard using the Input() function
Syntax:
Input(nCount) ---> string
The function will wait until nCount characters (at least) are read
Example:
See "Enter message (30 characters) : " cMsg = input(30)
See "Message : " + cMsg
Ring programming language