Created
December 13, 2016 04:03
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common lisp 的函数 MAKUNBOUND
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| 语法 | |
| makunbound symbol => symbol | |
| 参数和值 | |
| symbol --- 一个 symbol | |
| 描述 | |
| 无论 symbol 之前是否绑定,都解绑定 symbol | |
| 代码 | |
| * (setf (symbol-value 'a) 1) | |
| 1 | |
| * (boundp 'a) | |
| T | |
| * (makunbound 'a) | |
| A | |
| * (boundp 'a) | |
| NIL |
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