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发表于 2012-11-13 08:48:12
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1判断语句
8 ]6 {$ Z& U4 }* Z# w+ |& M4 j if <condition> then) Y1 D9 k' x7 [4 B/ L4 E, G
<statement sequence1>;+ i$ A/ a0 ^2 t( T
elseif <condition> then
0 f# B8 p6 w3 F5 Y1 M <statement sequence2>;
, T( f$ d7 k7 g( z% i else
- Z; \% \4 o, v2 E <statement sequence3>;
( m) `" b2 l$ n' j end;
& K# p2 _- e: }' o, k7 ?如果分支比较多，用：" f8 m& @1 Z: z, H5 C) h3 \. D
inspect <expression>
. e- F, J4 |7 {* G! n when <constant_list> then
% }, D0 Y0 H9 l5 D7 K5 K: Z0 Y <statement sequence1>;5 N; W/ k; g1 T$ N+ K( j, V& }
when <constant_list> then
6 z& g4 M: s" o) F2 Q) ~- E <statement sequence2>;1 b# h4 a. c9 y* c
...
0 Y) O' ?$ N. u6 F7 _$ d# p else
6 k( C+ X: G- } <statement sequence3>;
2 _1 m9 l/ X$ p4 t' x. |7 o; Q( Tend;
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2循环语句
2 n9 S. @+ }( G+ P( H; y5 e% ^ (1) from <statement sequence1>7 y" v3 k) f: `+ N# G
until <condition> loop
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end;" z+ i; w+ y; h3 g
(2) while <condition> loop
: V8 P7 Q2 u* T9 v# f9 J) Y <statement sequence1>;
0 d5 X' O7 ]+ x" `8 ^/ D end;
1 ?# s+ p/ t# W _7 l8 D9 |3 w (3) repeat + j% k# w( p/ u- x! H* K/ _
<statement sequence1>;
! Y B: v4 J, q0 k until <condition>;9 B' c$ Y) X% \2 L
(4) for <condition> to <condition> loop
1 n9 I/ L6 f9 R8 }4 b9 { <statement sequence1>;; b- I, e$ o9 l
next;
6 W2 N% f$ ?# ~+ Q/ L6 F5 b, n3中断语句$ E/ P, {1 D. a9 m, I* d
waituntil <condition> prio <integer expression>;
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5 x3 O, ]. K L" s! Z以上为常用的函数！9 C) K! x3 l) f2 o4 S, o' ~& q* y/ L
还有很多，如有需要我把资料发到你邮箱里 + P6 K) n2 O. y8 j" Y+ U
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