C语言 想要把除空格以外字符转为*，出现乱码

C语言 想要把除空格以外字符转为*，出现乱码

{
      char word[10];
      char _word[10];
      int count,i,a;
      system("cls");
      printf("please enter the chosen word(the size is less than 10 not including blank space):\n");
      gets(word);
      count = strlen(word);
      a = count;
      for(i=0;i<count;i++)
      {
        if(word[i]==' ')
          {
          _word[i]=' ';
          a = a-1;
          }
        else if( (word[i]>='a' && word[i]<='z') || (word[i]>='A' && word[i]<='Z'))
          {
          _word[i]='*';
          }
      }
      printf("The word %s has %d characters",&_word,a);
    }

for(i = 0; i < count; i++) {
        if(word[i] == ' ') {
            _word[i] = ' ';
            a = a - 1;
        } else {
            _word[i] = '*';
        }
    }