数码管显示数字之C语言模拟（转）

只看该作者 · 2012-2-27 17:25

很多学生问过我这个问题，要求设计一个程序，输入为数字，输出为符号化的数字，类似于数码管显示数字的功能。我随便写了一个，也没什么深奥的东西，只不过是变量控制罢了。

代码：

#define N 10 //最多可以输入10个数字
＃i nclude <stdio.h>
int check(char array[],int n)
{  //检查输入是否全为数字
  int i;
  for(i=0;i<n;i++)
   if(array<'0'||array>'9')
   return -1;
  return 1;
}

main()
{
char alpha[70][4]={{'*','*','*','*'},{'*',' ',' ','*'},{'*',' ',' ','*'},{'*',' ',' ','*'},
                              {'*',' ',' ','*'},{'*',' ',' ','*'},{'*','*','*','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{' ',' ',' ','*'},{'*','*','*','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{'*','*','*','*'},{'*',' ',' ',' '},{'*',' ',' ',' '},
                              {'*','*','*','*'},{'*','*','*','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},
                              {'*','*','*','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},{'*','*','*','*'},
                              {' ','*',' ',' '},{'*',' ','*',' '},{'*',' ','*',' '},{'*','*','*','*'},
                              {' ',' ','*',' '},{' ',' ','*',' '},{' ',' ','*',' '},{'*','*','*','*'},
                              {'*',' ',' ',' '},{'*',' ',' ',' '},{'*','*','*','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{'*','*','*','*'},{'*',' ',' ',' '},{'*',' ',' ',' '},
                              {'*',' ',' ',' '},{'*','*','*','*'},{'*',' ',' ','*'},{'*',' ',' ','*'},
                              {'*','*','*','*'},{'*','*','*','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},{' ',' ',' ','*'},
                              {'*','*','*','*'},{'*',' ',' ','*'},{'*',' ',' ','*'},{'*','*','*','*'},
                              {'*',' ',' ','*'},{'*',' ',' ','*'},{'*','*','*','*'},{'*','*','*','*'},
                              {'*',' ',' ','*'},{'*',' ',' ','*'},{'*','*','*','*'},{' ',' ',' ','*'},
                              {' ',' ',' ','*'},{' ',' ',' ','*'}}; //把10个数字符号化,7行4列为一个数字
int row,count,col,n;  //
char input[N+1];
int length;
printf("\nPlease input at most 10 digital to display\n");
scanf("%s",input);
length=strlen(input);  //length用来记录实际输入的数字个数
if(check(input,length)==-1)
{
   printf("\ninput error,exit!");
   return;
}
for(row=0;row<7;row++)
{  //7行
   printf("\n");
   for(count=0;count<length;count++)
   {  //控制每个数字
      n=input[count]-'0';
      for(col=0;col<4;col++)
      {  //每个数字4列
            printf("%c",alpha[n*7+row][col]);
      }
      printf(" ");  //每行中数字间隔
   }
}
}
运行效果可以在我blog上看到

数码管显示数字之C语言模拟（转）

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