Excel函数：基础文本函数之left函数，从左边提取指定字符数_哔哩哔哩_bilibili

Name: Excel%E5%87%BD%E6%95%B0%EF%BC%9A%E5%9F%BA%E7%A1%80%E6%96%87%E6%9C%AC%E5%87%BD%E6%95%B0%E4%B9%8Bleft%E5%87%BD%E6%95%B0%EF%BC%8C%E4%BB%8E%E5%B7%A6%E8%BE%B9%E6%8F%90%E5%8F%96%E6%8C%87%E5%AE%9A%E5%AD%97%E7%AC%A6%E6%95%B0
Uploaded: 2025-06-22T11:54:15.606Z