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...
–awk Do while循环称为退出控制循环,而 awk while 循环称为入口控制循环。因为 while 循环首先检查条件,然后决定是否执行主体。但是awk do while循环执行一次主体,然后只要条件为真就重复执行主体。 Syntax:doactionwhile(condition) 即使条件为假,在开始时至少执行一次操作。 2. awk Do While 循环示例:至少打印一次...
Do在编程中一般指代“做”或“执行”,1、半独立执行块,在某些编程语言中,如 C 或 Java,do通常与 while 关键词结合使用,构成 do-while 循环,它保证了循环体至少执行一次,即使循环条件初始值为假。在 do-while 循环中,循环体里的代码首先执行,然后才检查循环条件。如果条件为真,循环体再次执行,这个过程重复进行...
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...
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 ...
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...