IDE Window: Extract Procedure/zh CN: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: IDE Window: Extract Procedure/zh CN
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|---|---|---|---|
| 1 | + | 摘要:选择要抽取的Pascal语句,可以从该代码上创建新过程/方法。这个工具,可以拆分大过程或者创建一个新的过程。 | |
| 2 | + | ||
| 3 | + | 基本示例: | |
| 4 | + | ||
| 5 | + | ``` pascal | |
| 6 | + | procedure DoSomething; | |
| 7 | + | begin | |
| 8 | + | CallSomething; | |
| 9 | + | end; | |
| 10 | + | ``` | |
| 11 | + | ||
| 12 | + | 选择CallSomething,以进行抽取过程(右击,选择重构-\>解析过程;或者,Source菜单下的重构-\>解析过程),在弹出的对话框中类型:过程,输入过程名,之后点击抽取。 | |
| 13 | + | ||
| 14 | + | 如,选择上述操作后将返回: | |
| 15 | + | ||
| 16 | + | ``` pascal | |
| 17 | + | procedure NewProc; | |
| 18 | + | begin | |
| 19 | + | CallSomething; | |
| 20 | + | end; | |
| 21 | + | ||
| 22 | + | procedure DoSomething; | |
| 23 | + | begin | |
| 24 | + | NewProc; | |
| 25 | + | end; | |
| 26 | + | ``` | |
| 27 | + | ||
| 28 | + | 你可以看到新的NewProc过程被创建和替换。 | |
| 29 | + | ||
| 30 | + | 局部变量和参数:它会自动创建参数列表和局部变量。例如: | |
| 31 | + | ||
| 32 | + | ``` pascal | |
| 33 | + | procedure TForm1.DoSomething(var Erni, Bert: integer); | |
| 34 | + | var | |
| 35 | + | i: Integer; // Comment | |
| 36 | + | begin | |
| 37 | + | Erni:=Erni+Bert; | |
| 38 | + | for i:=Erni to 5 do begin | |
| 39 | + | | | |
| 40 | + | end; | |
| 41 | + | end; | |
| 42 | + | ``` | |
| 43 | + | ||
| 44 | + | 选择for循环,并创建一个新的过程NewProc。局部变量i仅在使用时选择。所以它会被移到新的程序。Erni会在之后用到,所以作为一个参数。 (右击,选择重构-\>解析过程;或者,Source菜单下的重构-\>解析过程),在弹出的对话框中类型:过程,输入过程名,之后点击抽取。 | |
| 45 | + | ||
| 46 | + | 返回结果: | |
| 47 | + | ||
| 48 | + | ``` pascal | |
| 49 | + | procedure NewProc(const Erni: integer); | |
| 50 | + | var | |
| 51 | + | i: Integer; // Comment | |
| 52 | + | begin | |
| 53 | + | for i:=Erni to 5 do begin | |
| 54 | + | | | |
| 55 | + | end; | |
| 56 | + | end; | |
| 57 | + | ||
| 58 | + | procedure TForm1.DoSomething(var Erni, Bert: integer); | |
| 59 | + | begin | |
| 60 | + | Erni:=Erni+Bert; | |
| 61 | + | NewProc(Erni); | |
| 62 | + | end; | |
| 63 | + | ``` | |
| 64 | + | ||
| 65 | + | 你可以看到i被转换到新的过程里,包括注释和Erni。 | |
| 66 | + | ||
| 67 | + | 留意: | |
| 68 | + | ||
| 69 | + | Pascal是强大的语言,但不要期望它提取的程序都可以工作。 | |
| 70 | + | ||
| 71 | + | 当前限制和待办: | |
| 72 | + | ||
| 73 | + | - 检查语句选择范围 | |
| 74 | + | - with语句 | |
| 75 | + | ||
| 76 | + | --- | |
| 77 | + | *From the Free Pascal wiki, page "IDE Window: Extract Procedure/zh CN", as it stood on 2020-02-17 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* |
