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common lisp 的函数 SYMBOLP
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| 语法 | |
| symbolp object => generalized-boolean | |
| 参数和值 | |
| object --- 一个 object | |
| generalized-boolean --- 一个 generalized-boolean | |
| 描述 | |
| 如果 object 是一个 symbol, 就返回 true, 否则返回 false | |
| 代码 | |
| * (symbolp 'elephant) | |
| T | |
| * (symbolp '()) | |
| T | |
| * (symbolp :test) | |
| T | |
| * (symbolp "hello") | |
| NIL |
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