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发表于 2012-11-13 08:48:12
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1判断语句
; Y0 [" a! N8 U if <condition> then
. J v- Z! W& Y( y1 @$ W; s <statement sequence1>;
. R' v4 N- e: C& k elseif <condition> then# o. g9 M$ l7 T" a1 M
<statement sequence2>;! r' Z$ `% e, I$ I
else
. s5 T9 i; J3 x: \ <statement sequence3>;' P; \3 i2 A+ R
end;
( U6 W- s9 |) s) Q9 i8 N如果分支比较多，用：/ ? |; G+ s' ^
inspect <expression>- Y X* L# J- i+ q9 p H$ m8 q
when <constant_list> then
7 @8 i, ?: s; p! q* N- q <statement sequence1>;( m) {- R4 H& S, e
when <constant_list> then
" G# A: @3 p* l. H9 ^ <statement sequence2>;
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else
$ a+ `' C0 D, y: J/ `8 e; h <statement sequence3>;
! X& G% s+ `% f2 P+ dend;
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2循环语句
" R% x) y' Z4 S& h8 o (1) from <statement sequence1>
& v! b+ S% d* s. N# j2 p& Q until <condition> loop
% j/ a) K# s7 q- ~9 f* y+ L <statement sequence2>;
S3 Q8 O( M* r8 G# S' b, Q' d end;- S5 p8 G7 F" v. n8 I, Z d
(2) while <condition> loop
; u$ c9 N4 ?' @4 {6 ~) w$ m6 U( ]+ u <statement sequence1>;% l3 k9 q9 |, p: Q8 s; N
end;: ^! D5 \" N* d' A4 d6 H# b' Z
(3) repeat ( R2 j: q9 r) f* ]; k
<statement sequence1>; e, P. l G. J! z% a
until <condition>;8 d* u+ H9 ~7 v0 w6 x7 Z$ @7 N
(4) for <condition> to <condition> loop z$ z1 E& H8 Y; p
<statement sequence1>;
* A' u+ _6 D1 c3 x# e next;7 W ~! T3 q; `! T; i* |
3中断语句
" B3 l+ W1 X% q# z( H. v2 {1 { waituntil <condition> prio <integer expression>;
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以上为常用的函数！
' x$ q( A7 t" L+ s! Z, O还有很多，如有需要我把资料发到你邮箱里 / e) ?$ w7 K, d" D) j9 z
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