#include<stdio.h>
int main()
{
  int i = 1;
  while (i <= 10)
  {
    i = i + 1;
    if (i == 5)
      continue;//跳过本次循环continue后边的代码，直接去while循环的判断部分    printf("%d ", n);
    printf("%d ", i);
  }
  return 0;
}

int main()
{
  int i = 1;
  while (i <= 100)
  {
    if(i % 2 == 1)//判断i是奇数的话，就打印i
      printf("%d ", i);
    ++i;
  }
  return 0;
}

//打印数字字符，跳过其他字符
#include <stdio.h>
int main()
{
  char ch = '\0';
  while ((ch = getchar()) != EOF)
  {
    if (ch < '0' || ch > '9')
      continue;
    putchar(ch);
  }
  return 0;
}

while ((ch = getchar()) != EOF)
  {
    putchar(ch);
  }
//getchar()--接收字符
//putchar()--打印字符
//EOF -- end of file 文件结束标志
//在函数读取失败的时候返回了EOF
//scanf函数读取成功，返回的是读取到的数据的个数，读取失败返回EOF
//而getchar 读取成功返回字符的ASCII码值，读取失败返回EOF

do
  循环语句;
while(表达式);

#include<stdio.h>
int main()
{
  int i = 1;//初始化
  do
  {
    printf("%d ", i);
    i++;//调整
  } while (i<=10);//判断
  return 0;
}

//break
#include<stdio.h>
int main()
{
  int i = 1;
  do
  {
    if (5 == i)
      break;
    printf("%d ", i);//1 2 3 4
    i++;
  } while (i<=10);
  return 0;
}

//continue
#include<stdio.h>
int main()
{
  int i = 1;
  do
  {
    if (5 == i)
      continue;
    printf("%d ", i);//1 2 3 4 _
    i++;
  } while (i<=10);
  return 0;
}

//for循环
//5!=5*4*3*2*1
//4!=4*3*2*1
//3!=3*2*1
#include<stdio.h>
int main()
{
  int n;
  int i;
  int temp = 1;
  scanf("%d", &n);//输入
  for (i = 1; i <= n; i++)
  {
    temp = temp * i;
  }
  printf("%d\n", temp);
  return 0;
}

//while循环
#include<stdio.h>
int main()
{
  int n;
  int i=1;
  int temp=1;
  scanf("%d", &n);//输入
  while (i <= n)
  {
    temp = temp * i;
    i++;
  }
  printf("%d\n", temp);
  return 0;
}

#include<stdio.h>
int main()
{
  int i;
  int temp = 1;
  int sum = 0;
  for (i = 1; i <= 10; i++)
  {
    temp *= i;//求每个数字的阶乘
    sum += temp;//求和，相当于：sum=sum+temp;
  }
  printf("%d\n", sum);
  return 0;
}