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发表于 2012-11-13 08:48:12
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1判断语句0 U1 U0 H* j$ K O2 @
if <condition> then
0 X# D# y. j2 Y( | <statement sequence1>;
5 ?# N5 ]5 n8 g/ G0 D elseif <condition> then
" Q; K0 [$ t3 j0 q/ O <statement sequence2>;
O! `- R4 @" G else 7 l# S+ O6 ~' L% b8 y
<statement sequence3>;
a+ l2 D U) S; f2 l/ z1 c& v end;
* V) q5 U L7 J+ B; `( a如果分支比较多，用：
/ ^) y$ E1 M1 D# Y$ ? inspect <expression>
6 R6 h$ g8 j. W$ z t# T/ ~ when <constant_list> then! B+ O2 f3 l) u. [
<statement sequence1>;- m w& m9 A! U* p9 ^
when <constant_list> then" G8 v6 |' r# |5 e) [
<statement sequence2>;
! E& f4 O* a5 H ...
7 ?2 h1 m9 _4 B' j! V8 r else
& C' ~' [5 x$ Y, I5 X <statement sequence3>;
# J: ^9 Z$ J* b* C) aend;
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3 k. L- X3 @% |/ c2循环语句
8 j! Q0 J l" u W' w9 i( ` (1) from <statement sequence1>
1 V! u% K1 [' c9 `2 s% F) C until <condition> loop* W- M1 R: j( t5 F$ ^! G
<statement sequence2>;
+ \ E! i; k9 M* d6 W end;. Q1 ]$ y; r: x h9 e6 O8 Q2 q
(2) while <condition> loop2 A+ U/ R6 s0 ?8 o+ ^+ n N {
<statement sequence1>;
' }4 k" ?& ^' v* D- V( Y end;
; S( c5 t' ~# ~0 }7 O (3) repeat
0 {5 w9 T% N) n: b <statement sequence1>;6 x$ Q* ]! X7 _% h% e
until <condition>;
6 r; x* \) V& ?9 l (4) for <condition> to <condition> loop# l, L- {7 ^- ^/ S6 K
<statement sequence1>;
0 S/ O1 f% V: q3 E8 u" w# u m next;
( n0 w' t3 \) f5 ~6 T4 Q3中断语句9 Z5 Z& n4 |" P
waituntil <condition> prio <integer expression>;* U& r+ k) ]9 I& H: b) p& ]
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% f8 R0 L J: x以上为常用的函数！: x, f6 F/ d0 e5 ], a
还有很多，如有需要我把资料发到你邮箱里 & z- d9 e7 S) B+ C+ ^
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