Question

求C语言程序，能把字符串中的大写字母单词提出来。

Answer 1

都没理解对

是大写字母单词提出来

不是把大写字母提出来

看我的

A
DOG
Press any key to continue
#include <stdio.h>
#include <string.h>

main()
{
int i,j,flag,wordLen,nLen;
char words[20]={0},str[] ="You are A little DOG!";
nLen=strlen(str);
for (i=0,j=0;i<nLen;i++)
{
if ((str[i]>='a' && str[i]<='z')||(str[i]>='A' && str[i]<='Z') )
{
words[j++] = str[i];
}else
{
words[j]='\0';
wordLen = strlen(words);
for (j=0,flag=0;j<wordLen;j++)
{
if (!(words[j]>='A' && words[j]<='Z'))
{
flag=1;
break;
}
}
if (!flag)
{
printf("%s\n",words);
}
j=0;
}
}
}

Answer 2

#include<stdio.h>
#define N 20
void main()
{
char str[N],*p;
printf("请输入字符串: \n");
scanf("%s",str);

p=str;

printf("大写字母如下: \n");
while(*p!='\0')
{
if((*p>='A')&&(*p<='Z'))
printf("%c",*p);

p++;
}
}

Answer 3

#include <stdio.h>
void main()
{
char c,ch[100];
int num=0;
printf("please input some characters\n");
while((c=getchar())!='\n')
{
if(c>='A'&&c<='Z')
ch[num++]=c;
}
ch[num]=0;
printf("%s\n",ch);
}

Answer 4

同楼上