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发表于 2012-11-13 08:48:12
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1判断语句
! i' {; G: Z6 @$ K- c3 [ if <condition> then
6 M' w: T# V; }( g/ R. n7 }1 | <statement sequence1>;
* W0 R( F. K6 m elseif <condition> then
" m! I7 L9 l2 U* |* } <statement sequence2>;' ^9 V: R9 m2 W' ]7 w
else + n7 V6 G6 f. f: T. p& g' ?$ O
<statement sequence3>;( K# f1 S, r) E2 a# q k
end;. _0 c- D& S1 B1 H; u9 t4 P& s$ n
如果分支比较多，用：3 F2 e; @% c7 ]$ D# n
inspect <expression>
y. ?5 F+ h' x& j& Z! U when <constant_list> then& v0 f) v3 W; T% e8 [
<statement sequence1>;
0 t8 B% L* A, ~* o p. L( F9 z when <constant_list> then: I+ q- ~7 q3 `6 o' r
<statement sequence2>;
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else
( D+ |" Z8 h4 M, h7 }) _; Z$ ~ <statement sequence3>;; j4 }( X( a; Y8 |. r) G+ m
end;
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) }% S e0 q# i# A$ l8 p l2循环语句
! k& n! p8 F- n( Z% u) h (1) from <statement sequence1>* {/ v4 L) `8 `! g2 s8 v' m
until <condition> loop
4 V, P& S3 h l$ w <statement sequence2>;6 s2 I' S9 ^0 e( a% N4 E
end;' k' L, ~. p, E7 ~4 I9 @
(2) while <condition> loop
: E. r1 \2 ]( N4 Q. g4 f0 M <statement sequence1>;- z% \" k$ x: l* X" d1 t/ S$ Q" v9 I
end;
/ T* d3 C5 A; w$ h/ U (3) repeat " w" F6 F& O; |9 Z7 K2 B3 L
<statement sequence1>;
1 Z( F+ x( k4 X# D L5 w until <condition>;8 R @( n, {* D0 C w) M' e! _
(4) for <condition> to <condition> loop
, @) |' ?% o+ d <statement sequence1>;
- a- R2 t5 [; d$ Y4 ` next;4 w4 L1 ~5 p# ], }0 L
3中断语句
?0 I& _' Q( B% ]6 ^" H waituntil <condition> prio <integer expression>;0 I3 K2 b5 ]- T
7 D1 I( [2 \) a o
. B% Q) a% }" S {以上为常用的函数！
2 A+ p. r0 L$ w还有很多，如有需要我把资料发到你邮箱里
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