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发表于 2012-11-13 08:48:12
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1判断语句
; A" h; q* g$ ^9 Y! ] if <condition> then
! B" A6 Q0 U8 h, }- o0 G$ X <statement sequence1>;
7 n* @* ~0 o$ e$ u elseif <condition> then5 Z- C3 ]2 i" o9 W$ g9 [
<statement sequence2>;
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<statement sequence3>;" v- I7 e' _/ Q
end;7 r: c; U f4 _( d5 y
如果分支比较多，用：
9 s' }+ d$ ~2 K$ v6 M inspect <expression>
2 G/ X% j+ p4 Q when <constant_list> then! }6 R+ h# e3 k8 Y$ u7 U4 R
<statement sequence1>;' O- t& x* a. H, s
when <constant_list> then* w4 @1 f( U5 n U6 |
<statement sequence2>;1 n4 L4 c2 [& C/ l, s& L6 l6 J. \
...
! o8 I0 P$ k8 v/ w" _7 x2 p6 P else
, a" p7 y$ J& u& {, f3 X- a <statement sequence3>;
! ?: [, o1 C' q5 Q! E7 k8 Nend; e& Z* Y5 r) w/ B
; q" }! B4 D3 Z4 c5 U! k2循环语句5 r u1 m4 c: T+ x+ e
(1) from <statement sequence1>* o& r$ a0 D+ |/ \
until <condition> loop
1 X: N; b+ l M5 x3 T <statement sequence2>;
, K |" o' K' j7 `2 w: ]% c, ` end;# f* N6 N3 M# t
(2) while <condition> loop8 Z1 y. a1 r0 y
<statement sequence1>;! ~, p, `( Q6 G8 d; g: o, f1 @
end;% d% L k8 {# u( u. d* Z3 O$ C7 ]
(3) repeat 0 w+ C" i$ d4 S9 w9 Q& o5 \, @
<statement sequence1>;5 _! k. u/ Y* l r
until <condition>;
" @ x0 ?: R* z% E6 Y v1 c. Q (4) for <condition> to <condition> loop, T& q2 _7 Q+ R% F
<statement sequence1>;
/ ]5 P9 H- S( R; C0 D. ^, W next;, l: Y( f8 ^# K5 l' S
3中断语句; P' x) b5 t& h m
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 z8 J+ j' G2 P% E/ l, V; `, O0 V
还有很多，如有需要我把资料发到你邮箱里 6 Q- j8 y6 l0 X- ~+ @" i
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