X==null \\&\\& !X.equals())
时间: 2023-10-16 21:09:30 浏览: 67
C#值类型、引用类型中的Equals和==的区别浅析
In most programming languages, including Java and JavaScript, this expression checks if the variable X is null or has no value assigned to it. If X is null, the expression evaluates to true.
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