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发表于 2012-11-13 08:48:12
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1判断语句/ U& d4 {5 S4 R- B
if <condition> then
/ c& n4 O+ _3 q' g, x <statement sequence1>;
6 ~0 o; R Q/ E0 k" N0 U& V& w elseif <condition> then2 ~# l. b5 w. T# r. X& f' `
<statement sequence2>;0 m6 |( K& V1 o8 h. l
else
1 m( I! v8 E7 m/ D) Y) S <statement sequence3>;
; ], _; X$ _6 j4 w, Y; X end;
- n2 U1 _$ `- a, ~3 j如果分支比较多，用：
+ U6 K3 @% a& g6 o. ]9 e inspect <expression>
3 ^* j- w @8 E" y5 `' G5 E when <constant_list> then9 Z5 \% ^$ ^& ~ K8 o
<statement sequence1>;
. k- D& n8 D) q0 w1 y. T when <constant_list> then& ~. V |9 {( A3 ]% i# Z4 @
<statement sequence2>;
5 F& m1 P) H' t ...
5 h2 Y& n' G S0 @+ k, ~! h else
) l0 \9 A# f0 M+ P- m! n, K <statement sequence3>;* y: [+ b- R% F3 C) A. q
end;
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2循环语句
+ U% [9 S* J2 q& y6 g (1) from <statement sequence1>7 \0 X3 A# [/ y% n6 D: _2 m* ]8 A
until <condition> loop# ^- L0 d$ {- W
<statement sequence2>;/ y% d& k$ K: }, z
end;+ U0 L* T" {9 c! R x( c
(2) while <condition> loop
% {, _, L2 G" {- U2 A1 S <statement sequence1>;
}% c7 X5 n& K# i7 T0 f7 K/ j end;/ P0 b2 a- `) V( V, z1 b9 N3 Q4 o
(3) repeat 6 M- N7 R# I' y( y, M5 f
<statement sequence1>;
4 C/ K! W7 v" K) I T* f until <condition>;9 i. T9 ^- L9 f& x1 J3 t
(4) for <condition> to <condition> loop
$ g6 b; @7 ` W" g$ x <statement sequence1>;
! N' j" L K( ?7 q1 z8 B& S+ T) { next;
$ c$ D9 {! h: j; z2 M3中断语句( z- }$ x. S) B3 T
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
8 o2 Y$ ~8 b# x5 `. z8 [$ V还有很多，如有需要我把资料发到你邮箱里 % P, j$ m' M/ M, n
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