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发表于 2012-11-13 08:48:12
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1判断语句# G4 V7 U; q+ w& o: e
if <condition> then" }9 J7 o9 L# \3 U1 M
<statement sequence1>;' ~# D5 O, O* |6 p! k3 V
elseif <condition> then
- G5 C0 K( o6 v0 }# C6 l <statement sequence2>;7 j6 y% E* j C9 Q$ ?0 S& z' M2 [
else
) v6 _6 n$ y* l; D& H4 H0 y4 C <statement sequence3>;
0 x, x+ Z; q7 x- Z4 Q end;
9 g0 s) p! D8 W% q# f% J; R如果分支比较多，用：
7 j& l: v9 v5 r/ X: w" |0 \ inspect <expression>
' c( S# T2 i) s* `$ j when <constant_list> then
2 o0 `% p s0 O: A4 P& Y <statement sequence1>;
2 O, R9 t4 G, {% T when <constant_list> then
" H* G- Y, F8 o: w9 k. z <statement sequence2>;) f7 N& j/ N) t
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else
( Q m& Z6 X& p: Z+ o; _0 [( b( R <statement sequence3>;
8 L. b/ G6 d3 @$ B3 V4 Yend;
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/ B2 D8 l! g; ~9 ^$ A# a8 C2循环语句3 }+ a. A9 e4 L
(1) from <statement sequence1>
6 m2 ^. P1 n6 x- y, P" g until <condition> loop
, ?! \& O- p8 |7 l# [6 Y7 W* Q <statement sequence2>;9 ~/ o4 u/ \4 I# ^" w5 `
end;
K) J+ U1 D! Q& s9 v" e$ a (2) while <condition> loop
/ r4 v- @8 i* B! c5 A& O8 ?& r <statement sequence1>;
1 _: E# A; Y4 M) i7 a+ r8 L3 W end;
% a/ h5 k. O& V$ X: N& _ (3) repeat
0 Z, Q! ^5 |( M( g; Y G <statement sequence1>;( t5 U+ p5 G# P, o% |
until <condition>;
# A9 p# ^ L" Z/ ^ s) k (4) for <condition> to <condition> loop' o# `* O4 Y8 `! x& l+ |
<statement sequence1>;- Z) e W5 N0 R7 e' W$ K( I( I% P0 E
next;5 B, O2 p" s- p
3中断语句
4 E) f# m; k k2 Z" s waituntil <condition> prio <integer expression>;
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3 w6 L ?1 H8 o9 i; ^" x以上为常用的函数！
7 m- I: B) L- j0 S, `/ P o还有很多，如有需要我把资料发到你邮箱里 4 V- ^0 j- G$ C8 R8 v7 x
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