C++?比如说 若输入：I am a student to take the examination., 则应输出：I Am A Student To Take The Examination.。方法1限制单词长度:#include #include #include int main(){char c, *pstr;char szWord[16]; while(1){pstr = szWord;while((c = getchar()) != ' ' && c != '\n' && c != EOF){*pstr++ = c;}if(c == ' ')*pstr++ = ' '; *pstr = '\0';*szWord = toupper(*szWord); printf("%s", szWord);;memset(szWord, 0, 16); if(c == '\n' || c == EOF)break;}} 方法二限制句子长度:#include #include int main() {char szLine[64], *pstr = szLine;char c; gets(szLine); do{ if(isalpha(*pstr)) {*pstr = toupper(*pstr); } while(*pstr++ != ' ' && *pstr != '\0');}while(*pstr != '\0'); printf("%s", szLine); }建议、 遇到经典例子最好存起来 好好学C，是基础，很重要