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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
) Q, C# T4 i" T, E. Y) S7 z if <condition> then
, x* c6 Z f( N, P& ` <statement sequence1>;
+ b1 w8 ~' I& }0 @7 j elseif <condition> then
1 E b" ?! X# ]. i <statement sequence2>;
; u* ~" N. Z9 t" O/ X5 m3 ]; V else
! d; D2 Y- e- m- U2 l) w. a <statement sequence3>;
& m& S: q, R2 `! I7 Y end;
* @- j' H. m, ?% B7 k如果分支比较多，用：& M1 G, b0 l1 ~, b* U
inspect <expression>8 J# b- v8 F/ V) X2 [6 q
when <constant_list> then
% Z& _4 d9 Y5 u! p+ E; H <statement sequence1>;
) \+ B7 @ T- W5 B# S# j$ @0 x1 U K when <constant_list> then- P: X) a# N) J: f4 ^7 B4 O1 \
<statement sequence2>;
A% X: N* b5 |+ T ...
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<statement sequence3>;7 y; Y- m7 `3 v m% K+ c
end;
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2循环语句
( }* I$ X* o# k. [! e# i. u4 B) m$ U' Y (1) from <statement sequence1>
* s4 w3 p5 k4 f; G! r% |# I4 \ until <condition> loop% g" `% }; N2 u! |. L0 p
<statement sequence2>;. G U9 B8 D8 r% s) M
end;
# w0 S( k% ^5 B r2 [+ B (2) while <condition> loop6 v8 C4 S# |, m: n4 A% z3 W' g
<statement sequence1>;( k. j. C9 S" C) N" D. b
end;0 j G4 E" d9 C% @7 b: z5 o7 p0 @
(3) repeat n0 t. a5 K0 [
<statement sequence1>;
6 m2 v) T5 L( P3 }. y$ @8 V4 o until <condition>;$ e9 i' A1 g I" P% o6 a1 p0 y+ _
(4) for <condition> to <condition> loop: B( n& \- Y8 P8 h
<statement sequence1>;
. }2 N$ Q2 F+ a4 B next;
1 z9 j8 N! T! `3 Q6 F' G4 A4 E, d3中断语句; T+ K/ |/ C6 Z2 _; {
waituntil <condition> prio <integer expression>;& Z* \. C% X# K( f; u+ O! Z
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以上为常用的函数！
" j1 X F3 w) v( y1 \还有很多，如有需要我把资料发到你邮箱里 3 I! x, K" y) a2 a# x
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