爱情丛林法则pdf:1、从键盘读入一行最大包含255个字符的句子（句子中没有标点，单词间以一个或多个空格/TAB分隔）。

/*
This program is designed to collect all vowels in an input sentence, and to print the sentence with all of the words
in an inversed order. Also words in the sentence are counted.
This program has some errors and some unfinished parts, please correct the errors and complete the program.
Besides, please explain the functions of two indicated parts (your answer should be added in the program as comments).
Please publish your results no later than 20:40.
*/
#include <stdio.h>
#include <stdlib.h>

int collectvowels(char *src, char *vow, char *wrd[]);
int isvowel(char ch);

void main()
{
/*At least two errors in this function. Please correct them.*/
/*本函数中至少有两处错误，请修改*/
char str[256], vowels[256];
char *words[80], cnt;

printf("Input a sentence: ");
scanf("%s", str);

cnt=collectvowels(str, vowels, *words);

printf("Vowels in the inputed sentence are: %s\n", vowels);
printf("The sentence contains %d words\n", cnt);
printf("And the inversed sentence is: ");
while(cnt--)
printf("%s ", words[cnt]);
printf("\n");
}

int collectvowels(char src[], char vow[], char *wrd[])
{
/*Express correspondence variants in the form of pointers instead of arrays */
/*把本函数中的数组表示形式改成指针的形式*/
int i=0, j=0, k=0, cnt=0;
char tmp[80];

while(src[i]){
if (src[i]==' ' || src[i]=='\t' || src[i+1]=='\0'){
if (src[i+1]=='\0')
tmp[k++]=src[i];
else{
/*Explain the functions of the following two statements.*/
/*下面两行语句所起的作用是？分别说明。*/
while (src[++i]==' ' || src[i]=='\t');
i--;
}
/*A statement may be needed here*/
/*此处需要一条语句*/

wrd[cnt]=malloc(k*sizeof(char));
/*Explain the functions of the loop statement.*/
/*这个循环的作用是？*/
do{
*(wrd[cnt]+k)=tmp[k];
}while(k--);
k++;
cnt++;
}
else
/*A statement may be needed here*/
/*此处需要一条语句*/

/*A conditional expression is required here*/
/*在括号中填入条件表达式*/
if ( )
vow[j++]=src[i];
/*A statement may be needed here*/
/*此处需要一条语句*/

}
/*Statements may be needed here*/
/*此处需要一或多条语句*/

}

int isvowel(char ch)
{
char vowels[]="aeiouAEIOU";
int i=0;
/*Complete this function. If ch is a vowel, the function returns 1, else returns 0. No switch statement please.*/
/*完成该函数。返回值为1表示ch为元音字母，为0则是其它字符。不要用switch语句啊:-)*/

}
1、从键盘读入一行最大包含255个字符的句子（句子中没有标点，单词间以一个或多个空格/TAB分隔）。
2、将句中的所有元音字母存入一个新的串。
3、统计单词个数。
4、将单词分别存入另一数组，并按反序输出（单词间仅以一个空格为分隔符）。
如输入：
Uh This Is A Test To Collect Vowels In The Sentence And Count The Words And Print The Sentence In Inversed Order
则输出为：
Input a sentence: Vowels in the inputed sentence are: UiIAeooeoeIeeeeAoueoAieeeeIIeeOe
The sentence contains 22 words
And the inversed sentence is: Order Inversed In Sentence The Print And Words The Count And Sentence The In Vowels Collect To Test A Is This Uh