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发表于 2012-11-13 08:48:12
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1判断语句+ A h2 Q n& [" ~4 F
if <condition> then
+ H* H( C9 V$ b- A) H <statement sequence1>;# F z( ~6 o3 G; M7 `7 k) h$ @
elseif <condition> then P, I" A% {7 R$ E2 U- i U; S5 U! T
<statement sequence2>;5 [( w" R4 G$ v: {& M
else
! w, h: ?7 b& ]$ e7 ~/ \7 d* ^: D <statement sequence3>;' a; L, P: A2 N0 _2 {
end;
$ i' s" ~, C" p6 `+ I4 q如果分支比较多，用：
; A: f0 D7 R4 f8 o4 a1 N inspect <expression>: J6 L3 L) P) I) g2 l Y6 a
when <constant_list> then
8 `8 b4 l4 }# C6 m* g( }) e6 T: B9 n5 h <statement sequence1>;! t7 b4 c% R1 Z7 `
when <constant_list> then7 E/ [ h9 E3 a' o' w5 y5 g
<statement sequence2>;0 x+ Z' n. c; D: [2 L" Y
...) I/ T7 J# b' p' M, T' p. [
else. p8 A. I( Q; ?, T9 C m# Q5 m
<statement sequence3>;# a i: |- J5 r+ u/ S7 w5 }
end;2 Z6 e7 F) J2 b: o
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2循环语句* b& D7 D+ h9 r% r
(1) from <statement sequence1>* S. s( W# F: M0 @4 {) E
until <condition> loop
; ~+ j# u$ k" V$ T5 h& O <statement sequence2>;% M; ~- z9 A/ Z/ ~" v0 U
end;8 B! d0 ~! I) Z
(2) while <condition> loop
& k" Y9 h& Y1 q/ @6 m6 Y <statement sequence1>;; w! E4 y: Q- _" `% s3 H
end;
, v6 G, V% R2 l8 r (3) repeat 7 x T0 J7 [! b9 w8 g' M
<statement sequence1>;
& v; M; V" s8 s$ v) {* v until <condition>;
! C7 X4 j. x4 C6 r' j$ B/ i (4) for <condition> to <condition> loop
8 u( f1 ]! H; ~8 h; { <statement sequence1>;
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3中断语句
- p( L6 A# _( o7 g1 h. e5 Y waituntil <condition> prio <integer expression>;
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9 a5 }" S0 J% }5 [6 \5 E
以上为常用的函数！9 l" q6 B! R3 ~ N* j' x- D
还有很多，如有需要我把资料发到你邮箱里
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