解题思路:将空格作为分隔符
ssize_t find_short(const char *s) {
ssize_t min = INT_MAX,count = 0;
while(*s!='\0') {
if (*s!=' ') {
count = 0;
while(*s!=' ' && *s!='\0') {
count++;
s++;
}
if (min>count) min = count;
} else s++;
}
return min;
}