C 程序:简单的while循环

原文:https://www.studytonight.com/c/programs/loop/while-loop

每个循环依次由三个部分组成

  1. 初始化:用于初始化循环变量。
  2. 条件:每次迭代后检查,作为循环的入口点。
  3. 更新:增加循环变量,最终终止不满足循环条件的循环。

这是 C 语言教程,解释了在 C 中循环时→ 和循环时

下面是一个关于while循环的简单程序。

#include<stdio.h>

int main()
{
    printf("\n\n\t\tStudytonight - Best place to learn\n\n\n");

    /* 
        always declare the variables before using them 
    */
    int i = 0;  // declaration and initialization at the same time

    printf("\nPrinting numbers using while loop from 0 to 9\n\n");

    /* 
        while i is less than 10 
    */
    while(i<10)
    {
        printf("%d\n",i);

        /* 
            Update i so the condition can be met eventually 
            to terminate the loop 
        */
        i++;    // same as i=i+1;
      }
    printf("\n\n\t\t\tCoding is Fun !\n\n\n");
    return 0;
}

输出:

Basic while Loop Program