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发表于 2012-11-13 08:48:12
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1判断语句8 R# _1 [$ M* d1 T3 f
if <condition> then" ~" p4 V& d' z7 {5 n) Q
<statement sequence1>;7 b5 H1 c: a) E$ ^8 t$ U% `
elseif <condition> then
6 H" U" |4 r" I( _- @ <statement sequence2>;
: v. p# p0 H0 C$ H+ K9 A else 6 X5 T0 f# N1 ~! a! n& }" Y# y
<statement sequence3>;) r$ \% \/ N$ ]4 O
end;5 U' s, K& U! J7 t; t
如果分支比较多，用：3 P! c- i# \3 M! v
inspect <expression>+ B/ a2 B: x5 p' D+ c9 M# i! p- t; ^
when <constant_list> then8 J" a: j) \; p+ H5 n7 k
<statement sequence1>;
$ d" d( I% w7 e) h2 K6 H. T: J# e when <constant_list> then
1 b3 B5 ?3 @+ p1 e6 ^3 ~2 @- ^/ ^ <statement sequence2>;
D- e3 S1 K) p; b7 m! V0 G/ j9 K ...
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<statement sequence3>;% z0 u b5 k( y7 p( }! x" Q
end;
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2循环语句
, T# Z, b q5 ` (1) from <statement sequence1>
! y: f& K9 ~) T1 h; C' ` until <condition> loop
3 _! O$ r. P) j3 X9 n <statement sequence2>;
: p' ]8 C; S: y! K" k" H1 i end;
7 a9 e" U$ q% ], C2 u (2) while <condition> loop
! ^6 y3 _2 d9 S( X3 G <statement sequence1>;
+ X# H+ W# x& C2 U3 B end;
2 \9 @$ B: ~5 O; _5 j/ {4 ]2 k$ F- | (3) repeat
4 Y( U# v- c( D7 g <statement sequence1>;
- Z- u' g) P2 J C3 v- F; \$ q until <condition>;
# B0 o# ]6 {4 p( f (4) for <condition> to <condition> loop8 ~# e; w8 G2 f6 H- j. |6 d1 j
<statement sequence1>;
. i C A! e2 |+ F& i next;
% d% r5 _/ l V. R9 C3中断语句
: o+ [4 f! b) l( @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
7 h1 i* C) O% j! v* b8 v4 e还有很多，如有需要我把资料发到你邮箱里
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