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发表于 2012-11-13 08:48:12
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1判断语句
% q( k9 O! T* c ^ if <condition> then
5 {7 f' `+ \0 N( A <statement sequence1>;3 t; d1 S, Y5 k' f; e6 |+ k
elseif <condition> then
|; |" P8 Y4 p) B7 l <statement sequence2>;
- w1 e* D, O. S: H else
7 d4 `- P- K# H' R <statement sequence3>;
% [# Y1 S$ J# H2 [8 h- [1 c7 | end;
& ^0 J6 k% E. `) [+ ]如果分支比较多，用：' z; N# M3 |5 }) l" w
inspect <expression>
0 i+ W+ t" \& T5 x when <constant_list> then
3 X* K4 v3 l3 v <statement sequence1>;+ f# r6 t3 R0 W% l5 {5 S& J
when <constant_list> then B" Y8 F: X4 H1 q- c. D$ f6 A5 w
<statement sequence2>;
+ ]4 t$ ~8 O" M7 L+ w& S; S9 ?& X ...+ T4 C" P3 d; K& @4 a' d: Q1 k
else1 b+ g) C; K0 B1 Y2 F- Q5 B# K. i
<statement sequence3>;
/ D2 H, m8 }- K4 R: g s7 i5 B qend;* s$ n" u* c; E% e0 m5 {" Q
3 z0 g0 O% p& x6 N/ Y% G/ w2循环语句+ N/ Y5 ^9 F. K5 M- Y+ B& M
(1) from <statement sequence1>
/ @' t, i" l9 Y0 ? until <condition> loop
" o5 x& r# f6 G( A9 A/ S <statement sequence2>;
" m e) H* D) S8 S; y& m3 l# n& b end;
D% f( E k2 V+ W (2) while <condition> loop
8 Y9 S- Z, x H, k% `! ?4 H <statement sequence1>;
$ } G& _4 K) s) Z" y I end;
- @+ h3 E; q% B' b# q (3) repeat $ n+ F! d& [% f7 S; K
<statement sequence1>;, E7 m: s+ W7 f. x
until <condition>;
, ?' t" d5 Q: `7 O; {; e) m (4) for <condition> to <condition> loop& H! i- }% j0 W1 G F# ]
<statement sequence1>;
% d3 Z7 [& S4 |1 Y next;* c2 V4 `- r3 C6 D8 \+ s! H
3中断语句' v; b/ Q; c# Z3 X
waituntil <condition> prio <integer expression>;6 H! F* h7 u, _& [, E2 a
6 H* Q5 o; z: E, R. F+ U3 G5 Q: m0 U8 a
以上为常用的函数！
: W6 J: E3 @( i/ a; s1 T- S9 w0 x还有很多，如有需要我把资料发到你邮箱里 & q+ E: n' h1 |1 r% L4 S8 v) ~
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