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DO loop is an iterative statement?
An iteration statement, or loop, repeatedly executes a statement, known as the loop body, until the controlling expression is false (0). The control expression must have a scalar type. The while statement evaluates the control expression before executing the loop body (see Section 7.6.
What is loop or iterative statement?
For some programming objectives it is necessay to repeat a set of statements a number of times until a certain condition is fulfilled. In such situations iteration statements can be used. The iteration statements are also called loops or looping statements.
What is iterative statement give example?
Iteration statements cause statements (or compound statements) to be executed zero or more times, subject to some loop-termination criteria. When these statements are compound statements, they are executed in order, except when either the break statement or the continue statement is encountered.
Can we use else with for loop?
In most of the programming languages (C/C++, Java, etc), the use of else statement has been restricted with the if conditional statements. But Python also allows us to use the else condition with for loops. The else block just after for/while is executed only when the loop is NOT terminated by a break statement.
How to use if condition in for iteration?
Your code has a filtering step implemented with TRY CATCH. You could apply FILTER # ( ) first, or try the VALUE # ( itab [ ] DEFAULT / OPTIONAL ) if you want entries not in the lookup table. And the COND constructor operator is also possible (COND equivalent to IF, and SWITCH equivalent to CASE).
How to monitor the number of iterations in a while loop?
(Optional) Monitor the number of iterations the loop has undergone by right-clicking on the iteration terminal and selecting Create Indicator. Use structure tunnels to feed data into and out of structures like the while loop. If you want to send data into your while loop, you need to create structure tunnels.
How to control the execution of a while loop?
On the block diagram, drag the Stop button icon into the while loop. Wire the Stop button to the conditional terminal so that you can control the execution of the while loop. By default, when the Stop button is pressed, a true value is passed to the conditional terminal causing the while loop to stop execution.
How to use while loop in LabVIEW-National?
By using Boolean functions, you can implement multiple conditions to affect your while loop conditional terminal. You can use an “or” function to compare an error wire status and a Stop button control so that if either is TRUE, the conditional terminal receives a TRUE signal, and the while loop stops.