Created
November 28, 2016 16:09
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common lisp 的宏 WITH-OPEN-FILE
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语法 | |
with-open-file (stream filespec options*) declaration* form* => results | |
参数和值 | |
stream --- 一个变量 | |
filespec --- 一个文件指示符 | |
options --- 一个form, 会被求值 | |
results --- forms的值 | |
描述 | |
with-open-file 用 open 函数去打开 filespec 所代表的文件, 并创建一个流指向这个文件. | |
options 作为 open 函数的参数 | |
代码 | |
* (with-open-file (test "x") | |
(read test)) | |
ZHOU |
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