while loop

DECLARE @i intSet @i=1While @iBeginINSERT INTO Test (userid) VALUES (@i)Set @[email protected]+1End---------------While conditionBeginPerform actionsSet @[email protected]+1EndWhileSets the criteria for repeating the SQL statement or block of

Use the while loop to read the file content by character. 01? Php0203 uses the while loop to read the file content by character 04 feof () to detect whether the file pointer has reached the end of the file: 0506 $ filePathUsersCufficaDesktopaddicte 0

The while loop is used to continuously execute a series of commands and to read data from the input file; the command is usually a test condition. The format is:While Commanddo Statement (s) to being executed if command is TruedoneThe command

Second, Continue/break usage and difference:Continue and break are used to control the loop structure, mainly to stop the loop1. Break: End the entire loop bodySometimes we want to terminate a loop when a condition arises, rather than wait for the

While loopAnother loop that differs from the For loop is the while loop, which does not iterate over the elements of the list or tuple, but rather determines whether the loop ends with an expression.For example, to print an integer no greater than N

if we want to do a lot of things, say we want to output hundreds of numbers, one output of the words not only cumbersome and time-consuming, inefficient. In this case, C # provides us with a much simpler way to output the loop. There are many types

Linux while loop and for loop code example introduction, linuxwhile There are three types of loops in the script, which can be divided into two types: while LOOP and for loop.1. while Loop The while loop can be divided into two types: whiel do done

------Java Training, Android training, iOS training,. NET training, look forward to communicating with you! -------"Loop Structure"1 , circular structure Introduction:Loops are executing the same block of code again and again2. Several conditions

If you encounter a while loop problem, please advise! The problem is as follows: there is an stu table where all the data should be retrieved and the code is written as follows: the result is as follows: what I cannot understand is that the result

The while loop is used to continuously execute a series of commands and to read data from the input file; the command is usually a test condition. The format is:While Commanddostatement (s) to being executed if command is TruedoneThe command

Before writing the IF condition to judge, generally in writing the shell script may use the dead loop at this time need while statement, it is the best way to do the dead loop, before the while loop need to tell the file test, because it is often

This article focuses on the use of while loop statements in Lua, the basics of Lua's introductory learning, and the need for friends to refer to A while loop statement in the LUA programming language that repeats the target statement whenever a

For Loops a section of code to a specified number of times While Loops execute code when the specified condition is true For loop Use a For loop when the number of times the script is run is determined. Grammar: for (variable = start value;

To understand the meaning of the while loop, the purpose of using the while loop is to iterate multiple times! A while loop is a loop that determines whether to exit according to the criteria specified after the while keyword. If you want to quit

While Loop statement:1: Grammar--While loop syntax:While (executes loop when expression is established) loopThe statement to execute;END LOOP;Where: The order of execution of the loop statement is to judge the true and false of the , if it is true,

Directory:I. While loop and until loopTwo. Loop control statement continue break shiftThree. Special usageI. While loop and until loop 1.while CycleWhile CONDITION; DoLoop bodyDoneCONDITION: cyclic control condition; Before entering the loop,

Syntax for While loop:While conditional statementLoop code block# #break Interrupt this layer while loop# #跳出本次循环进入下一次循环Else# #循环结束后可以打印的内容Here are a few small exercises:1. Use the while loop to determine whether the number entered is prime.Num=int (

#循环, Traverse, iterate# for Loop, while loopSee Data typesType (name) intBreak no matter whether the loop is complete or not, end the loop immediatelyContinue end this cycle and proceed to the next cycleOne, while loop# while loop, must have a

One, for loop[email protected] shell]# cat for.sh#!/bin/bashFor i in ' seq 1 10 '; Doecho "$i"DoneWith this script you can see the basic structure of the For loop:The condition of the for variable name in the loop; do Commanddone[Email protected]

In the previous lesson we introduced the For loop in C + +, and this tutorial introduces you to another loop statement while loop. Let's look at another loop, which differs from the for loop in that the for loop generally knows the number of loops,