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发表于 2012-11-13 08:48:12
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1判断语句4 h+ f3 g* L+ s% N/ L, V
if <condition> then J+ \' y+ u, }$ u$ u' H
<statement sequence1>;
- h! G' `7 e) m1 j elseif <condition> then* s* V+ y1 M; j% [
<statement sequence2>;
3 ~# U0 j8 C: ^ s) _4 I4 E, Q else
% h6 F& A+ q+ e- M; }7 x <statement sequence3>;
* D3 u& y0 c5 v6 b8 g end;
8 N! |/ c! Q" _+ p如果分支比较多，用：
3 z# y: h; u$ n$ O. ^( J; w inspect <expression>
3 o$ n% ~- c$ W; V! C9 l' p" |' {1 ~ when <constant_list> then
: g8 m# Z3 {0 Q1 @, m <statement sequence1>; b: }: s3 V4 J# {' z, n
when <constant_list> then
6 m; |( ?( h9 W& W& ? <statement sequence2>;
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else
; Q7 c' \. s7 {" u$ ^ <statement sequence3>;
8 D) h( @7 I1 tend;
6 e/ ]3 x9 G% f
0 e5 I; ]1 w! f% Q' I p2循环语句
) G# h+ G. H2 g/ \% e/ | (1) from <statement sequence1>
8 u' L( i0 c: z- N: ^- D8 g until <condition> loop( i/ w; K) U" O+ g
<statement sequence2>;6 L" \+ t8 B8 b. v$ F% w( z
end;3 X8 W+ y. h7 Z
(2) while <condition> loop
% H% J1 j h% N5 K- v <statement sequence1>;8 u& j( s* z) F5 O3 E; w5 Z
end;
! h U; w0 U& M/ m (3) repeat " G0 ^9 a! S, w; o& k" S( r) i
<statement sequence1>;
4 q4 `) ~: k* _/ i% a until <condition>;' `* q* U9 ^% P! P
(4) for <condition> to <condition> loop
3 z/ k3 |4 i% ]/ j <statement sequence1>;
+ B$ L1 ^" y/ Q( v2 v next;
' p( O4 U# A5 k7 L3中断语句$ Z+ j& C3 B/ g# R( ~; X
waituntil <condition> prio <integer expression>;9 M2 o" [3 B# c2 f/ Y% h+ Y
% v" K! U0 @8 s8 b1 A6 j0 U
# ~( F. p( j$ ~6 g ^+ I. n以上为常用的函数！
/ e" y% N6 H5 E还有很多，如有需要我把资料发到你邮箱里 6 Y- a$ k/ m+ b
1 {8 k* j; C- {( u$ [( ?' G4 V5 a4 {& a9 n
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! ^8 J( d8 i3 q; }$ {2 l$ `5 y, @- q! P' O
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