文章目录 一、现象二、解决方案 一、现象
spark.sql运行报如下错误
TypeError:float() argument must be a string or a number,not “NoneType”二、解决方案
检查spark,发现数据字段里面含有空值(NULL)࿰…
题目: 题解:
func diffOne(s, t string) (diff bool) {for i : range s {if s[i] ! t[i] {if diff {return false}diff true}}return
}func minMutation(start, end string, bank []string) int {if start end {return 0}m : len(bank)adj : make([][…