c_cpp [最后一个单词长度]计算字符串中最后一个单词的长度＃字符串处理

Posted 2021-05-14

int LengthOfLastWordInString(char* str) {
    int len = 0;
    int front = 0, rear = 0;
    char t;
    while(1) {
        t = str[rear];
        if(t == ' ' || t == ',' || t == '.' || t == '\0'){ //单词结束标志
            len = rear - front > 0 ? rear - front : len; //排除末尾空格和连续空格的情况
            front = ++rear;
        }else {
            rear++;
        }
        if(t == '\0') { //字符串结束标志
            break;
        }
    }
    return len;
}