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就因为姓“空”,他们生活中处处BUG!干啥都能让电脑宕机,简直 ...
早在上世纪60年代,英国计算机科学家Tony Hoare在设计程序语言ALGOL W时,引入了Null这个单词来代表“无效的,无价值,无意义的,空值”。
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