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发表于 2012-11-13 08:48:12
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1判断语句) k# q0 K2 `1 Q/ l
if <condition> then
; k) C9 p; Z) S0 p( n& V <statement sequence1>;
/ a1 B( L$ F/ I elseif <condition> then3 l- X4 w K7 U3 M1 A$ u! K5 R
<statement sequence2>;; X1 E" D2 y- }& H9 G; m
else
# e3 X0 g1 S4 W/ |9 H! P <statement sequence3>;; b1 v) J& o5 Q
end;4 w' k4 i4 \! B3 K$ L5 ` v
如果分支比较多，用：- k6 c; ~3 P7 G
inspect <expression>
; p) G" g9 X# `$ z$ L- a2 i& c when <constant_list> then
8 U; Y/ M a" V6 Q <statement sequence1>;8 r" h$ y. k0 E# \9 ^% z5 h
when <constant_list> then
- P. u4 B/ Q, z! @9 @8 P8 A% u <statement sequence2>;
) r8 p& i3 o0 F% h ...
: d/ a1 X/ P! W( n" D else
& ]# l) ?9 p5 q ^* R1 c3 ` <statement sequence3>;( C2 Z3 I2 @9 \8 a
end;
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2循环语句0 S1 f) {- a6 |' ^5 |% u7 [4 O
(1) from <statement sequence1>/ T1 U8 V2 s7 b
until <condition> loop
( g7 l/ B S3 f3 }: j2 C <statement sequence2>;
/ V5 o: C& i1 T2 ^. a end;
# w1 E7 }7 H! Q4 B3 ~- V (2) while <condition> loop1 Z3 ?' h6 p" Q! s6 ]5 e. b3 l
<statement sequence1>;" d( N1 o9 H! d; K3 j+ u7 z
end;- E! r) R/ B8 x5 n9 c
(3) repeat
$ s; k8 Y: ~8 f0 G+ o6 F <statement sequence1>;6 K( C! x: x r. B" z
until <condition>;+ y. d! I. R. X; O* N, _
(4) for <condition> to <condition> loop
; N' L* x( f; U7 v0 L <statement sequence1>;0 Q2 q y/ K! m( A
next;: v8 a: z8 ^0 Q$ r$ m- E) |* @- `
3中断语句
) i* B6 d; ^ \5 U2 k) k1 x% O* O6 M1 L waituntil <condition> prio <integer expression>;
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3 H) R& s C% j& n: R; p* d$ c以上为常用的函数！% {2 o3 p! m6 k, q/ W5 F
还有很多，如有需要我把资料发到你邮箱里 ; y- k% @+ l! F
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