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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
! o* A/ K1 y! X/ ^ if <condition> then: {0 |9 T8 m6 r
<statement sequence1>;
5 v4 E7 O0 W4 T, o5 z- H elseif <condition> then
/ D; p( @! h) a: c, l3 I1 g% A <statement sequence2>;
3 y1 S- R# _6 s( m2 P else
4 m1 }( l2 R' P' l; e; p <statement sequence3>;
9 y4 C5 T% ~" k7 u4 h) C4 c end;
9 b- T/ }( s0 O! `8 N如果分支比较多，用：
0 u; v8 w" a& U3 }" E% }" C inspect <expression>
& ~+ u* b# S) V6 f. W! L$ w6 S. A when <constant_list> then2 e9 I/ |6 }+ y# P- |+ L9 w7 U! J+ t
<statement sequence1>;' j+ }1 B( c( {, W
when <constant_list> then
6 n0 o# E* @, W, u1 M! s <statement sequence2>;
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else, I( m8 k9 H! m1 y' z/ Y5 v+ ]$ J' }
<statement sequence3>;; R9 _9 w* @0 [; z2 l; m, u
end;
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$ Z; X( |; D: o2循环语句
- o% p& I- {0 Q) T9 d- _ (1) from <statement sequence1>' [8 h/ z# \0 Z N
until <condition> loop
* \, B0 j- Y1 R8 U) U# Z4 ~ <statement sequence2>;
& x( l m) ^' \( F3 n+ l% G0 q end;
7 ?8 Q+ q4 ^# S; z4 h! |- ` (2) while <condition> loop
% V; V. }: w# I <statement sequence1>;8 a6 S8 E4 u* ?; C
end;
6 q+ V+ J& {# |5 B) ~ (3) repeat , q1 P$ h. i) [0 p
<statement sequence1>;- w4 M$ x: A0 u
until <condition>;
& e; I3 m% r( s) z# f (4) for <condition> to <condition> loop( U6 @. c. Z) ]! ~6 ]
<statement sequence1>;, i# g4 R" s B" M6 ?- h: ^
next;) m# o/ d3 z! O, C/ t- x
3中断语句
% u' c2 Q1 x: @8 }7 E waituntil <condition> prio <integer expression>;
& @( M) z# S0 p$ M( X' Q1 r( O4 K0 C7 S8 k( Z& O5 Y
[( [' S. S0 s( S以上为常用的函数！# P& U$ [2 T# L/ i6 t
还有很多，如有需要我把资料发到你邮箱里 * s$ c) U% c Y- ~* o
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