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发表于 2012-11-13 08:48:12
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1判断语句
( }/ U& c# X: y X$ }7 ` if <condition> then- y9 c4 P# J( O5 D+ X. f( a
<statement sequence1>;3 @3 Z l5 h' B; \+ A: F7 C- D" c
elseif <condition> then6 y! R7 _# V: o6 B# g$ b) _( P% A+ ~* l
<statement sequence2>;
% i+ x' t4 `9 ]1 p5 G# X$ P+ b, J else
5 d" m/ v+ i, \' s0 C* p8 W <statement sequence3>;
4 A: l! d/ M# W) p: s0 a c9 k end;
9 `% g; q9 g! @4 p% ? R6 ^2 s如果分支比较多，用：
. z- V' s' @- z9 D; \8 y; O& s inspect <expression>
; v! H; G: `* H3 I* K when <constant_list> then
1 I T# f/ a# C2 a+ T! } <statement sequence1>;
s0 ~3 u" e, f6 m6 |* l when <constant_list> then
! R6 T3 j1 }2 e9 x: x: C <statement sequence2>;5 L7 B7 r4 c9 ]( t; i' {! q
...2 } e7 p- P6 N3 r( o) F9 E) R4 n; D6 u4 O
else
% W0 e6 `6 Z, r$ ~ <statement sequence3>;& {6 U! T, O( X) _/ D
end;+ T/ e2 Q: X& I! f& q
n1 t. n% E8 c$ |+ o3 }+ i2循环语句
, a/ u# f* e$ a( l* M1 { (1) from <statement sequence1>5 i2 c3 Y& c$ \4 S. c3 d
until <condition> loop
2 n& p8 D8 K' j <statement sequence2>;
- T6 P( [, A/ c! S8 q end;
2 L0 u7 a- d& |, z (2) while <condition> loop" z: ~% b* ?9 q
<statement sequence1>;; Y5 L# [6 I- D7 I D
end;
C" {! u' c0 _4 \) P1 z! y: D: b (3) repeat
! }* o4 g; G" U' o) [4 w& _7 x <statement sequence1>;. w' o% x( P# P& K1 F7 c5 ?( E! y3 d
until <condition>; E: S( l1 i& C. ^
(4) for <condition> to <condition> loop
9 V! Y( D* K( Q+ M& T' Q9 ^ <statement sequence1>;
8 I4 j1 G3 Q8 J# @6 X3 S next;
5 N: n4 b+ G, y( |+ |1 a0 y, L) f3中断语句: l/ a2 s7 O$ ^% J- @2 P' i
waituntil <condition> prio <integer expression>;/ p' L% N3 \4 Z# P
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以上为常用的函数！" z7 m5 C( V6 o- t( H& C
还有很多，如有需要我把资料发到你邮箱里
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