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发表于 2012-11-13 08:48:12
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1判断语句8 a/ C+ n+ |, ~; ^
if <condition> then/ A1 B0 \! o8 L/ z2 I* Q3 I
<statement sequence1>;
; S4 b- Q$ y \; @' ` elseif <condition> then
. }% q, S( t1 e' i0 J0 |4 \4 ]3 S2 }2 h8 x <statement sequence2>;/ s1 R7 t8 c2 U$ T- {1 G: z, U
else & S: |# o% p7 X* m: Y; [0 Z9 G8 }
<statement sequence3>;
7 i M8 h+ \7 O: U end;
7 r2 K6 d: g. l& Z8 l( e6 T如果分支比较多，用：4 V4 m& P& r, {& h" z
inspect <expression>
$ P( |8 U" N- X2 x+ w. P, ] when <constant_list> then
3 g. Q" T [- h3 c <statement sequence1>;: K) Q9 \/ \1 T! S
when <constant_list> then) d" l2 F* [2 T
<statement sequence2>;, k* k1 r& R+ n) L, K. k: h P) `
...2 W1 P0 l+ `3 H) [% C0 M3 `1 ~# B% m8 }
else0 L {4 a0 s1 q" E; _- t% j2 ], @
<statement sequence3>;
6 J) a6 V7 o/ G- e; x3 k$ V4 z$ wend;
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$ |3 s1 Y- [; P i: G2循环语句' ]' S. W- t- ^4 P
(1) from <statement sequence1># ~* [0 P. d/ F+ }6 }2 a, U
until <condition> loop
. X& a$ i9 r4 q% B3 X <statement sequence2>;
8 T' p& c! M6 d$ w- y end;
4 O" t) K J' _, E+ n/ h$ H. f d6 y (2) while <condition> loop( i# F3 S. ?* o3 W. C% j: G1 | n% T* P/ f
<statement sequence1>;
/ |, u- H! V* ] end;6 J. V. y- W( b8 @4 e
(3) repeat
' f: f; n+ y- l4 q4 H3 j) d( X <statement sequence1>;
5 z( y# ^ N/ | a# ]) B* ] until <condition>;
! r/ P3 r: w k7 m' {- e" h (4) for <condition> to <condition> loop9 R. w$ |8 I% h" U0 W
<statement sequence1>;5 ^' v. ~4 n2 m0 O. b2 S* U& [
next;5 F& b! u! c4 r( u0 ~
3中断语句
3 b6 o) m) j9 M" R0 a+ A4 V waituntil <condition> prio <integer expression>;" L9 w& g3 M2 t
$ _3 t; D# Z- ?9 G4 }; a: X
|: f) R* u( G0 l0 B+ C以上为常用的函数！( g! a* ?% r5 m* t! G5 O3 G: n
还有很多，如有需要我把资料发到你邮箱里
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