[求助]：谁能发一点文件读写操作的例子？

lei6699

我在做毕业设计，要用到文本文件读写操作
帮助文件里面没有详细一点的例子

恳请大家赏个脸~~给发个范例看看吧，多谢了

zhang8755

读取SDF文件,将读入的每一行转换成表

2. 
   
3.   [FONT=courier new]
   
4. (setq fn (open fname "r"))
   
5. (setq aline (str_to_list (read-line fn)))
   
6. .
   
7. .
   
8. .
   
9. (close fn)
   
10. 
    
11. (defun str_to_list (str / i one l strl)
    
12.   (setq one "")
    
13.   (setq strl (strlen str))
    
14.   (setq i 1)
    
15.   (while (<= i strl)
    
16.     (if        (/= "," (substr str i 1))
    
17.       (setq one (strcat one (substr str i 1)))
    
18.       (progn
    
19.         (if (= "." (substr one 1 1))
    
20.           (setq one (strcat "0" one))
    
21.         )
    
22.         (setq l (append l (list (read one))))
    
23.         (setq one "")
    
24.       )
    
25.     )
    
26.     (setq i (1+ i))
    
27.   )
    
28.   (if (= "." (substr one 1 1))
    
29.     (setq one (strcat "0" one))
    
30.   )
    
31.   (setq l (append l (list (read one))))
    
32.   l
    
33. )
    
34. 
    
35.   [/FONT]
    

<br />   [FONT=courier new]<br /> (setq fn (open fname "r"))<br /> (setq aline (str_to_list (read-line fn)))<br /> .<br /> .<br /> .<br /> (close fn)<br /> <br /> (defun str_to_list (str / i one l strl)<br />   (setq one "")<br />   (setq strl (strlen str))<br />   (setq i 1)<br />   (while (<= i strl)<br />     (if        (/= "," (substr str i 1))<br />       (setq one (strcat one (substr str i 1)))<br />       (progn<br />         (if (= "." (substr one 1 1))<br />           (setq one (strcat "0" one))<br />         )<br />         (setq l (append l (list (read one))))<br />         (setq one "")<br />       )<br />     )<br />     (setq i (1+ i))<br />   )<br />   (if (= "." (substr one 1 1))<br />     (setq one (strcat "0" one))<br />   )<br />   (setq l (append l (list (read one))))<br />   l<br /> )<br /> <br />   [/FONT]<br />