Question

帮我解释一个程序（C语言直方图）

#include <stdio.h>#define MAX_ASCII (127)          void DrawHistogram(int *Count);     main(){    int CharacterCount[ MAX_ASCII ] = {0};    int c;        while( ( c = getchar() ) != EOF )    {        ++CharacterCount[ c ];    }        DrawHistogram( CharacterCount );        return 0;        }void DrawHistogram(int *Count){    int i, j;            for( i = 0 ; i < MAX_ASCII ; i++ )    {        if( Count[ i ] != 0 )        {                        switch( i )            {                case ' ' : printf("Blank\t");                               break;                case '\n' : printf("NewLine\t");                                 break;                case '\t' : printf("Tab\t");                                break;                default : printf("%c\t", i);            }                        for( j = 0 ; j < Count[ i ] ; j++ )            {                putchar('-');            }            putchar('\n');        }    }    }

Answer 1

#include <stdio.h>
#define MAX_ASCII (127)
void DrawHistogram(int *Count);
main()
{
int CharacterCount[ MAX_ASCII ] = {0};
int c;
while( ( c = getchar() ) != EOF )
{
++CharacterCount[ c ];
}
DrawHistogram( CharacterCount );
return 0;
}
void DrawHistogram(int *Count)
{
int i, j;
for( i = 0 ; i < MAX_ASCII ; i++ )
{
if( Count[ i ] != 0 )
{
switch( i )
{
case ' ' : printf("Blank\t");
break;
case '\n' : printf("NewLine\t");
break;
case '\t' : printf("Tab\t");
break;
default : printf("%c\t", i);
}
for( j = 0 ; j < Count[ i ] ; j++ )
{
putchar('-');
}
根据你输入的排版了下

Answer 2

while，for，if，switch。。。。

Answer 3

程序太不规范了，没人愿意看的！

Answer 4

程序写的太乱了 看了就头疼 怎么看啊

Answer 5

LS+1