C语言 一起打印多行字符串

Question

我有两个char数组，包含一个用于1的图像和一个用于0的图像。

char a[] =  "      &&n"    
            "     & &n"
            "    &  &n"
            "   &   &n"
            "  &    &n"
            " &     &n"
            "&      &n"
            "       &n"
            "       &n"
            "       &n"
            "       &n"
            "       &n"
            "       &n";
char  b[] = "    & & & &    n"
            "   &       &   n"
            "  &         &  n"
            " &           & n"
            "&             &n"
            "&             &n"
            "&             &n" 
            "&             &n"
            "&             &n"
            " &           & n"
            "  &         &  n"
            "   &       &   n"
            "    & & & &    n";

现在我想打印10（在屏幕上水平以大写字母）。

我尝试使用它：

printf("%s  %s", a, b);

但这没有用。 我应该怎么做？

Answer 1

像这样的事情呢：

char *a[] = { "      &&",
              "     & &",
              "    &  &",
              "   &   &",
              "  &    &",
              " &     &",
              "&      &",
              "       &",
              "       &",
              "       &",
              "       &",
              "       &",
              "       &"};
char *b[] = /* ... */; 
for (size_t i = 0; i < sizeof a / sizeof *a; i++)
{
    printf("%s %sn", a[i], b[i]);    
}

Answer 2

你不能用一个printf来做到这一点，因为你必须交错。您所要做的就是逐行构建它。所以你把每个字符串拆分为 ，然后打印

for (int i=0;i<sizeof lines_a / sizeof char*;i++)
    printf("%s %sn", lines_a[i], lines_b[i]);

Answer 3

如果你不能按照 ouah 在他的回答中建议的方式重新设计你的数据结构——这是处理问题的最佳方式（重组数据以使其易于处理通常是一个很好的方法）——那么你需要在每个"大字符"中找到行尾并依次打印每一行。

char *a_line = a;
char *b_line = b;
char *a_end;
char *b_end;
while ((a_end = strchr(a_line, 'n')) != 0 &&
       (b_end = strchr(b_line, 'n')) != 0)
{
    int a_len = a_end - a_line;
    int b_len = b_end - b_line;
    printf("%.*s   %.*sn", a_len, a_line, b_len, b_line);
    a_line = a_end + 1;
    b_line = b_end + 1;
}

当a或b数据用完时，此循环将停止。 对于示例数组，它们具有相同的行数，因此没有问题。如果他们有不同的行数，也会有更多的工作要做。 同样，代码假定每个数组中的行长度都相同，与示例数据中的长度相同。 如果它们的长度不同，就会有更多的工作要做。

完整的测试代码

请注意，我已经删除了零之后多余的尾随空格。

#include <string.h>
#include <stdio.h>
int main(void)
{
    char a[] =  "      &&n"    
                "     & &n"
                "    &  &n"
                "   &   &n"
                "  &    &n"
                " &     &n"
                "&      &n"
                "       &n"
                "       &n"
                "       &n"
                "       &n"
                "       &n"
                "       &n";
    char  b[] = "    & & & &    n"
                "   &       &   n"
                "  &         &  n"
                " &           & n"
                "&             &n"
                "&             &n"
                "&             &n" 
                "&             &n"
                "&             &n"
                " &           & n"
                "  &         &  n"
                "   &       &   n"
                "    & & & &    n";
    char *a_line = a;
    char *b_line = b;
    char *a_end;
    char *b_end;
    while ((a_end = strchr(a_line, 'n')) != 0 &&
           (b_end = strchr(b_line, 'n')) != 0)
    {
        int a_len = a_end - a_line;
        int b_len = b_end - b_line;
        printf("%.*s   %.*sn", a_len, a_line, b_len, b_line);
        a_line = a_end + 1;
        b_line = b_end + 1;
    }
    return 0;
}

示例输出

      &&       & & & &    
     & &      &       &   
    &  &     &         &  
   &   &    &           & 
  &    &   &             &
 &     &   &             &
&      &   &             &
       &   &             &
       &   &             &
       &    &           & 
       &     &         &  
       &      &       &   
       &       & & & &    

Answer 4

但是你可能不喜欢这个答案，但是如果你想让你的"1"被完全打印出来，然后你的"0"被打印出来，我建议这样：

#include<stdio.h>
#include<Windows.h>
//gotoxy sets the cursor in position of int x,int y
void gotoxy(int x , int y){
   COORD newPosition={x,y};
   SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),newPosition);
}
//getxy gets current position of cursor and returns a COORD(a struct with fields of X and Y)
   COORD getxy(void){
   CONSOLE_SCREEN_BUFFER_INFO csbi;
   GetConsoleScreenBufferInfo(GetStdHandle( STD_OUTPUT_HANDLE ),&csbi);
   return csbi.dwCursorPosition;
}
int main(){
        char a[] =  "      &&n"    
                    "     & &n"
                    "    &  &n"
                    "   &   &n"
                    "  &    &n"
                    " &     &n"
                    "&      &n"
                    "       &n"
                    "       &n"
                    "       &n"
                    "       &n"
                    "       &n"
                    "       &";//I deleted 'n'
        char  b[] = "    & & & &    $"
                    "   &       &   $"
                    "  &         &  $"
                    " &           & $"
                    "&             &$"
                    "&             &$"
                    "&             &$" 
                    "&             &$"
                    "&             &$"
                    " &           & $"
                    "  &         &  $"
                    "   &       &   $"
                    "    & & & &    $";
        //your codes
        COORD first=getxy();//get position of first member of your "1"
        printf("%s",a);
        COORD last=getxy();//get position of last member of your "1"
        gotoxy(last.X+1,first.Y);
        COORD current=getxy();
        int i=0;
        while(b[i]!=''){
            if (b[i]=='$'){//this if statement does like 'n' but sets the cursor in your defined first_of_the_line
                gotoxy(current.X,current.Y+1);//current.X is your defined first_of_the_line
                current=getxy();
            }
            else
                printf("%c",b[i]);
            i++;
        }
    }