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发表于 2012-11-13 08:48:12
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1判断语句7 R9 `* H0 w: Y) ^1 P3 {% Q) A
if <condition> then) i( C2 Q: t* e; U3 \1 B. V
<statement sequence1>;
+ t7 G' i3 i7 @6 T' M6 c M2 l, S. } elseif <condition> then
: ?+ M% w5 r( |2 O" b$ t* b <statement sequence2>;
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<statement sequence3>;
( w6 c; U+ d6 a7 X/ i end;
; G. I2 _# c* v2 i2 h( P: W如果分支比较多，用：
' b: Z+ B9 ?. ~1 { inspect <expression>8 b" S4 l' S2 I5 m
when <constant_list> then( d. v7 ^ N- D% ]
<statement sequence1>;5 @& v8 ~5 H K2 y7 G* P' ~+ m
when <constant_list> then
8 J3 r- r. P i3 A2 O3 t( H" P3 d% n <statement sequence2>;. n8 C6 k' A* t5 K% @
...
; O9 @6 R. s7 M1 X6 I4 Y: H else
* r- x; x0 K$ V* k <statement sequence3>;; a7 g7 p0 N3 S8 Q4 m+ P
end;7 p I( ^1 W& K3 d2 ]. [
' z; ]* _) U3 h2循环语句; B7 _8 p# q2 c
(1) from <statement sequence1>
/ v$ `# ~0 g$ Z8 t: {% w7 ] until <condition> loop
+ n) V- s# {5 H8 a6 n% W <statement sequence2>;( q% C- S, C1 K1 U
end;
- J( J; [* G5 z# Z# @! k; U9 @' c (2) while <condition> loop8 \0 f' L* h, P* G/ I
<statement sequence1>;
! f: h4 R+ w& p" b. ~. P3 U end;5 u E$ a" y; `0 D- D6 _
(3) repeat
0 ]3 p" \' s: w9 L! b" n <statement sequence1>;
, y, Y9 G4 Z. w" E1 t+ R until <condition>;
U7 f3 N5 `* Y0 m- j (4) for <condition> to <condition> loop9 H, b# O' |8 M
<statement sequence1>;
7 E+ H: g9 c: l next;
' L$ O1 E8 @: x3中断语句
$ w7 ]& ] Z4 t& b waituntil <condition> prio <integer expression>;7 p6 X2 n3 M$ |- ~3 m
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以上为常用的函数！
( V0 B* b- H9 R7 \3 X还有很多，如有需要我把资料发到你邮箱里 # \; U5 Y+ i4 T& h, K
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