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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
- \ M2 p* j/ b) r& J if <condition> then0 F$ d7 x/ K8 I. P
<statement sequence1>;. t1 D; L/ f3 ^' ~
elseif <condition> then; \; y& y, {5 a* U4 y1 j
<statement sequence2>;
1 z: `, W$ d' [ g, `& v else
2 d# X& E" e: o8 E <statement sequence3>;
3 h2 E0 r" O5 m; Y$ } end;
/ c3 l9 Y9 d, r# g4 A9 I- Z$ N& l如果分支比较多，用：
7 J' z: Z6 Y: l; k' S inspect <expression>
0 s/ W6 K) ] V+ `- ~0 H! T when <constant_list> then e, ]( X+ R. [. p7 L4 i+ k& ?
<statement sequence1>;" z4 R+ I3 E- T8 \1 j9 G
when <constant_list> then% ?4 w3 |+ q( j. l( i
<statement sequence2>;( _2 k! o" P9 R$ f/ |+ S# k
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else
* x* T$ H3 @/ B2 D+ r5 m0 z! z <statement sequence3>;
. S7 n' w- G" [3 I0 Qend;7 N% s6 U" S, F
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2循环语句& A8 a+ N1 d' ]2 e# C
(1) from <statement sequence1>3 x" M. H8 k/ O) P* j
until <condition> loop7 B: o& p" [, ~& B) D
<statement sequence2>;
8 c1 L7 O1 D2 N8 E end;
; q5 U* ]* T3 R7 T( M# l (2) while <condition> loop5 ~3 Y0 Z( m( ^. M: J% B) o3 y) C
<statement sequence1>;- n; Q2 q- V& ^4 y1 Z, q
end;/ o$ g5 U# U. S) f5 B
(3) repeat 3 F2 e- k0 D) g6 W2 h% @
<statement sequence1>;
- a+ O# K; z8 T: ? until <condition>;" Q- l0 Q: K; v/ i: z
(4) for <condition> to <condition> loop6 r0 S: Z$ ]+ P+ I0 s9 O* S
<statement sequence1>;; O+ ]# I! c# q5 c1 Z
next;. w8 p+ D9 n; }& o9 s0 h
3中断语句
: d% _- t# t Y7 H" t0 b4 B waituntil <condition> prio <integer expression>;
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以上为常用的函数！
, R8 Y9 e4 Z0 W7 l还有很多，如有需要我把资料发到你邮箱里 ! }3 \- l8 Q' i% _& L& l9 ~
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