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发表于 2012-11-13 08:48:12
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1判断语句' R/ ?6 [/ G" h& b! n
if <condition> then8 {# b+ M+ g3 c
<statement sequence1>;2 ~& u- r9 \+ @+ U0 d
elseif <condition> then
2 K6 C# W1 u/ ~% Q; w; A6 T <statement sequence2>;) c1 k# e+ U: Z
else
+ |7 m: Y% W4 s! | <statement sequence3>;$ F" e1 B2 y6 F0 n# g
end;
% k, S7 Z6 Y) S6 \; S I如果分支比较多，用：$ E7 l! C# `4 b& u5 H
inspect <expression>1 x- U# A; P, I! U, ^! e
when <constant_list> then5 A1 g- ?" V" k
<statement sequence1>;
+ S6 P% d$ Q( l2 ]3 l when <constant_list> then
4 A, v1 J$ Y% H8 `* o5 e1 o0 r3 h <statement sequence2>;7 u5 D; e! f' m* w$ H: h0 ?
...% b1 {# Y2 M0 h& }2 U! @0 [
else/ t# m# _( j0 P) e! L
<statement sequence3>;
0 J0 b5 m6 d- U! v/ K5 Xend;% E6 e% x0 D# j& b
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2循环语句
6 k6 Y: r& M! K$ w' Q* U (1) from <statement sequence1>
. D: s+ Z: J" d* p, L until <condition> loop
8 \2 I' H% T f9 ^8 O <statement sequence2>;/ d+ i! l9 p$ M X& P
end;- i9 e- T3 }- U0 z$ O/ \
(2) while <condition> loop
9 j4 { k' u5 k( J, B; e$ x( _ <statement sequence1>;) a/ r, |) q( T3 Z( T$ c- s- E
end;! r0 J- P) t& r/ N5 _6 _" u/ C
(3) repeat 6 l- \+ ?% H7 U& `) J* \6 [
<statement sequence1>;: A9 N! b2 N2 q4 _+ ^* R9 `
until <condition>;+ |7 B% m$ Q/ A* I/ s$ l
(4) for <condition> to <condition> loop
, i3 z: ~) `- @' F+ W% W <statement sequence1>;
1 H! a4 r+ X" k7 M# B Y4 W next;
% M( b5 s( P: Z7 Y9 [3中断语句6 r) e7 Z3 p, X( ]/ ^7 t2 E
waituntil <condition> prio <integer expression>;" _& A: ], V; O7 I) C# z2 }+ n
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以上为常用的函数！: t4 b6 O5 n+ j( c0 s9 d& I
还有很多，如有需要我把资料发到你邮箱里 8 B f! b! C8 ~3 A0 v! Z$ Z
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