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发表于 2012-11-13 08:48:12
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1判断语句' o+ k# n0 G9 _" F8 w# E- `" Q
if <condition> then
- o! J2 @$ {: x5 u4 ?) | <statement sequence1>;/ y" I H( g+ F
elseif <condition> then% C: S% [5 |' v
<statement sequence2>;' G" v p2 T. N* a
else : |. `' c& v. X% a
<statement sequence3>;
3 {! }9 ^% j9 E9 ^ y+ b end;
g& C/ B! G. t( y7 L; P7 q如果分支比较多，用：
L! s" e6 @% ^3 m B* } inspect <expression>
( ^& H. f6 e, w- Y+ w3 U when <constant_list> then* m0 m% U$ |6 A- e* W6 l: C
<statement sequence1>;
5 R9 {; W2 d0 G3 X1 h1 c when <constant_list> then
% {$ [( p7 y3 ^2 v <statement sequence2>; A8 q+ W# R+ C7 T/ B
...
; O+ G/ y, B' c3 e/ x5 M else
& a0 `4 ~, {. A" p2 z) F8 d <statement sequence3>;1 h9 d/ b2 O% V7 F/ w7 C6 B0 o0 S
end;( p4 h b0 _" M9 X0 c
1 Y1 ?9 l, z$ D, w9 P2循环语句
' D$ M) C! i2 @ (1) from <statement sequence1>9 f! J7 t5 X9 |. n7 A8 }
until <condition> loop* z4 b2 H7 s/ m9 _5 |) _
<statement sequence2>;/ U0 f4 X7 M+ e+ R9 V+ |4 K, n3 T
end;( z2 D8 \' r' W) i7 ?& e2 V& B( u& V
(2) while <condition> loop, o$ V2 C& \, @# }, x
<statement sequence1>;1 h* I8 ^0 ~/ \8 \2 Y& S, `
end;
" j7 r* V' S% G9 N6 X, z (3) repeat
; O& M! B% j3 {, Y <statement sequence1>;; D( g7 G- V) x; D
until <condition>;
/ r& X! J! @: d7 Y* w (4) for <condition> to <condition> loop
% `" w$ }( ^" p n7 z1 a2 m <statement sequence1>;
' V$ d: |" V/ N; ]/ I next;. R k" ]/ r9 [5 A) @; r* f
3中断语句6 F! I- H' S; d( t% |( w. I
waituntil <condition> prio <integer expression>;
7 d: V6 B7 b# f! x0 ^/ v
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' [0 k3 B: V7 Z* }0 o7 @以上为常用的函数！2 f* y- c" m# f& h- y: n/ u' R
还有很多，如有需要我把资料发到你邮箱里 4 C/ b4 [" y. c* J. ?! z* K8 @& R
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