与while循环顶部测试循环条件的for和while循环不同,C编程中的do...while循环检查循环底部的条件。 do...while循环类似于while循环,除了它保证至少执行一次的事实。 语法(Syntax) C编程语言中do...while循环的语法是 - do { statement(s); } while( condition ); 请注意,条件表达式出现在循环的末尾,因此循环中...
The do-while statement lets you repeat a statement or compound statement until a specified expression becomes false. Syntax iteration-statement: do statement while ( expression ) ; The expression in a do-while statement is evaluated after the body of the loop is executed. Therefore, the body ...
C programming has three types of loops. for loop while loop do...while loop In the previous tutorial, we learned about for loop. In this tutorial, we will learn about while and do..while loop. while loop The syntax of the while loop is: while (testExpression) { // the body of the...
do-while 循环是一种后测试循环(also known as exit-controlled loop):首先执行循环体中的语句,之后才评估循环的继续条件。与之对比的是 for 和 while 循环,它们都是先测试循环条件,然后再执行循环体,称为前测试循环(pre-tested loop)。在实际编程中,根据具体需求选择最合适的循环类型非常重要。 二、SYNTAX AND ...
awk 循环语句用于连续一次又一次地执行一组操作。只要条件为真,它就会重复执行一条语句。awk 有许多循环语句,就像“C”编程语言一样。 awk while 循环 Syntax:while(condition)actions while 是一个关键字。 continue是条件表达式 actions是 while 循环的主体,可以有一个或多个语句。如果动作有多个语句,则必须用大括...
Syntax do{ // code block to be executed } while(condition); Note:The semicolon;after thewhilecondition is required! Do/While Example The example below uses ado/whileloop. The loop will always be executed at least once, even if the condition is false, because the code block is executed ...
The syntax for ado whilestatement is: doloop_body_statementwhile(cond_exp); where: loop_body_statementis any valid C statement or block. cond_expis an expression that is evaluated at the end of each pass through the loop. If the value of the expression is "false" (i.e., compares equ...
C++ Nested Do-While Loop A do-while loop inside another loop is referred to as a nested do-while loop in C++. Note here the inner loop executes multiple times for each iteration of the outer loop. Syntax: In C++, a nested do-while loop has the following basic structure: do {// Oute...
C++ while Loop The syntax of the while loop is: while (condition) { // body of the loop } Here, A while loop evaluates the condition If the condition evaluates to true, the code inside the while loop is executed. The condition is evaluated again. This process continues until the conditi...
Output of while loop: Output of do-while loop: b: 11 Note that thewhileloop doesn't take any iterations, but thedo-whileexecutes its body once. This is because the looping condition is verified at the top of the loop block in case ofwhile, and since the condition is false, the progr...