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发表于 2012-11-13 08:48:12
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1判断语句, i& O- Y- ^) @/ l9 G7 N7 B
if <condition> then- c& ^! r* ]$ I: y1 x2 k F
<statement sequence1>;0 H' @7 t( | O- x! e% c
elseif <condition> then
& F+ c. S* s( H, h6 Y. K <statement sequence2>;
1 |+ V. L& Q: _/ I# M else
9 e; a) R: R9 K/ Z$ @( z2 E, l" f <statement sequence3>;7 o4 k) e& \6 F2 h- t# B8 O
end;! @/ ]0 y# B6 m, E( g
如果分支比较多，用：; \! D! P' N4 Z' r6 a
inspect <expression>4 V, U8 q$ L. B: s$ |0 B5 H
when <constant_list> then
. |- ^7 j) h( |) z1 Y9 d <statement sequence1>;9 W$ X9 u5 \; b7 C+ m# t
when <constant_list> then. c* h8 S j1 ]' M
<statement sequence2>;: _' W0 `/ b( E% T7 u% f/ M
...# D% b4 M$ `, R( J: c! V2 D6 F, C- z
else2 J4 P B; V1 f s: Y' p2 u
<statement sequence3>;
2 j, h P! `. Z: E3 ?0 S, pend;
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2循环语句
+ Q( W0 f; b( b- U$ b (1) from <statement sequence1>: A& p. N/ S- t; ^2 ~# K
until <condition> loop
& l7 ^4 Q. V" w' C0 L$ }" | <statement sequence2>; u' h* |/ C. k J% B
end;
( V0 S0 m2 l7 X (2) while <condition> loop
8 l& T4 o) k" V- ?6 ^0 K0 [ <statement sequence1>;
4 w) I% ~% _. E$ Q0 D2 z' H/ @4 S end;& \" f: N% ]4 |3 g4 F
(3) repeat
7 }9 t+ a7 u/ l, x% Q# f. t& J <statement sequence1>;
2 I2 o0 s/ f2 |' Z7 O" P; T until <condition>;
' T2 v+ R( Y* g0 T. g9 r) u0 _ (4) for <condition> to <condition> loop8 H- Y) J! I, X5 t/ t
<statement sequence1>;$ p% {6 P0 p4 X1 ?: G% T
next;9 R5 B t8 O) m C
3中断语句) \. Y2 p: M1 `+ g8 M7 I
waituntil <condition> prio <integer expression>;3 A& a; j* W3 o
7 V9 o8 Y: N( `4 _% p* [8 B6 `* F) I5 T; L+ X: d7 A
以上为常用的函数！
- I1 _* W; i3 A( |0 L& M3 P( p还有很多，如有需要我把资料发到你邮箱里 1 i4 [4 b' a) ]7 h! A7 D
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