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发表于 2012-11-13 08:48:12
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1判断语句
' E: D: d! D8 E: Q! y' [- Y c. N if <condition> then
7 U: q7 t" P: W/ I$ W! J <statement sequence1>;
' r: q2 f% r1 a; u elseif <condition> then! I' f1 `3 s+ L' Q) N2 I
<statement sequence2>;
' n1 _% c3 s( g, W/ [ else 1 D& W2 D3 d! ^: _
<statement sequence3>; A1 M( k6 i# C3 N' f4 \( ? W; z' R
end;4 B7 m' G5 S c7 ?! o- l
如果分支比较多，用：
; V4 {; ]! Z. y- Z- j+ L; u inspect <expression>
" G! U& I3 c4 G( _ when <constant_list> then
3 ?. b7 X; L/ G8 O) f <statement sequence1>;
U& `0 b0 d. q2 s; Q when <constant_list> then# Y* L4 J6 b0 C9 U* a
<statement sequence2>;
) x D( j. r1 |' r4 O ... \) J+ o" h5 u6 Z* d
else
7 c1 Q3 V* a- k5 P <statement sequence3>;
8 p4 \+ ]" F! P+ i8 gend;
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6 w B2 ]. g, u" I9 P2循环语句
$ K+ n; ~/ H- [/ D+ ? (1) from <statement sequence1>; P- H5 l/ `6 o& o( W: N) }
until <condition> loop3 Z6 T+ o* E- {( w( X- _1 j
<statement sequence2>;
. M W1 ~- q5 s5 W1 x end;
' Q, v, ^6 z5 i (2) while <condition> loop7 ~$ j) r' P: t/ w$ B: I
<statement sequence1>;
2 B; M9 y2 ~3 k1 E9 ~; I7 R end;
/ p: I/ W$ B# i# Q, p8 g% M/ W (3) repeat
1 \* Q7 g0 K+ @! k/ l4 a( c <statement sequence1>;
( Y3 b6 a! ?0 B; K until <condition>;
% M) W0 q' N8 ^- R (4) for <condition> to <condition> loop" S; m. M8 @ _% s
<statement sequence1>;
" E2 ~; G, B. A5 T( W5 z( W next;
# a4 q3 V1 u3 x$ _: \! H3中断语句
" F* g1 U9 g# R1 J J% X waituntil <condition> prio <integer expression>;
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以上为常用的函数！' a9 G$ v9 R. z* r1 ]
还有很多，如有需要我把资料发到你邮箱里
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