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Python Lambda function 检查变量是 Z6C3E226B4D4795D4EC226B34 或 NoneB08

[英]Python Lambda function to check if a variable is NULL or empty or None

Just trying to understand lambda function只是想了解 lambda function

problem:- variable "sep" should return "-" if variable "txt" is not null or empty or none.问题:- 如果变量“txt”不是 null 或为空或无,则变量“sep”应返回“-”。 Below is what I tried, but it's full of syntax error下面是我尝试过的,但它充满了语法错误

txt="askjdh"
sep=lambda x: '-' if txt

sep=lambda x: '-' if txt else '' ? sep=lambda x: '-' if txt else '' ?

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