what while loop

-Set I variableDECLARE @i int--Set J variableDECLARE @j int--Set the multiplication table variableDECLARE @chengfabiao varchar (1000)--Give i,j, @chengfabiao assign the initial valueSelect @i=9,@j=1, @chengfabiao = ' '--Print 99 multiplication table

Jump statement: BreakExample: for (int i=0;; i++) //no judgment condition, i.e. forever satisfying condition, infinite loop{Console.WriteLine ("Hello world!");if (i==9){Break Jump out of the loop when i=9}Continueif (i==2){Continue //End Subsequent

01 02 03 Read file contents by character by using the while loop 04 Feof () detects if the file pointer is at the end of the file 05 06 $filePath = '/users/cuffica/desktop/addicted.rtf '; 07 $fp = fopen ($filePath, ' R '); 08 while (!feof ($fp))

In the picture, why is the curly brace in the start of the while loop writing the closing tag? The end of the curly brace is also included in the PHP tag, which is a separate PHP tag. Why write this? Is it okay to include all of these in one of

A while loop is required to continuously detect the state of a sensor and adjust the robot's posture.However, this while loop needs to be run regularly and automatically jumps out after about 10 seconds of running.After searching for a long time on

Repeated code execution Method 1:print ("XXXXXXX") print ("XXXXXXX") print ("XXXXXXX") print ("XXXXXXX") .... Methods for repeating code 2:while conditions: Things to do when conditions are met (Loop) Example: #如果不确定到底需要重复执行多少次, then find a

To print the 99 multiplication table with a For loop:For I in Range (1,10): for J in Range (1,i+1): print ('%s*%s=%s '% (j,i,i*j), end= ' \ t ') print ()Print results1*1=11*2=22*2=41*3=32*3=63*3=91*4=42*4=83*4=124*4=161*5=52*5=103*5=154*

Python uses a for while loop to print the Yang Hui triangle exercise (list index exercise).Yang Hui Triangle is a number of triangular tables, the general form is as follows:11 11 2 11 3 3 11 4 6) 4 11 5 10 10 5 11 6 15 20 15 6 1.....................

Syntax for While loop: While condition testDoCommand AreaDone Example:#!/bin/bashdeclare-i i=1declare-i Sum=0while ((iUse while to read file contentsWhile loop, the classic usage is to go with the switch input, read the contents of the

While loop format:while (conditional expression) {Statement....}Note the point:Loops: Used to handle a number of repeated operationsSpecific steps to write a loop:1. Identify actions that need to be performed repeatedly2, determine the conditions of

Python can cause a loop to break if it is return in the while loop[email protected] root]# cat test_while_return.pyCount = 0while (Count print ' The count is: ', countCount = Count + 1Print "Good bye!"print '-' *20while (Count >= 3):print ' The

Direction onei = 1While I j = 1While J Print ('%d*%d =%2d '% (J,i, i*j), end= ')J + = 1Print ()i + = 1Idea: First write out the column, from one to nine, then write out the column, each row = column when the line is wrapped, the number of rows

Expression If ... elseFirst, user login verification 12345678910111213141516171819202122 # 提示输入用户名和密码 # 验证用户名和密码#     如果错误，则输出用户名或密码错误#     如果成功，则输出 欢迎，XXX!#!/usr/bin/env python# -*- coding: encoding -*-  _username = ' Qian

C + + while loop The general form of the while statement is as follows: while (expression) statement The action is to execute the inline statement in the while statement when the specified condition is true (the expression is not 0).

The while loop is the simplest loop in PHP, and its basic format is: while (expr) { statement } Or while (expr): statement Endwhile; This syntax indicates that, as long as the expr expression is true, the statement is

The number of times specified to execute the same code block in JavaScript or the specified condition is true. ExampleWhileHow to write a while loop. Use the while loop to run the same code block, and the specified condition is true. Html>

One, if statementIn PL/SQL, keywords such as if, then, else, elsif, endif are used to perform conditional logicSyntax format:if conditions 1 Then Statement 1elsif conditions 2 Then Statement 2Else Statement 3End If; Example 1: Practice If

Declarex number; Beginx:=9;> --Cycle point x:=x-1;dbms_output. Put_Line (X); IF X>0thengoto Repeat_loop; --When the value of X is less than 9 o'clock, goto repeat_loopend if; end;/For loop usage in OracleDeclarex number; --declaring variable

The difference between the while loop and the repeat loop in MySQL1, while is to meet the conditions to execute the cycle, repeat is to meet the conditions exit cycle;2. While the condition is judged at least 0 times before the first loop is

Oracle PLSQL uses the while LOOP instance program in the cursor Oracle PLSQL uses the while LOOP instance program in the cursor DeclareCursor emp_cur is select * from emp;V_emp emp % rowType;BeginOpen emp_cur;While emp_cur % notfound -- while