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发表于 2012-11-13 08:48:12
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1判断语句) b/ {7 R5 k9 ]/ L1 q# w
if <condition> then
7 m( g+ v0 ]. i( [/ W& \' r <statement sequence1>;4 |! N- P0 W4 o5 j+ F
elseif <condition> then2 V9 V# ]4 s4 @$ h5 @7 p3 e
<statement sequence2>;: l8 t, M/ y' p ^0 H2 w
else ) l S- H& v, S2 c2 D5 I8 P
<statement sequence3>;/ ^/ k E" ]7 [/ l* D0 {4 h1 R
end;6 ]2 M$ ?3 u+ H3 L" r1 y5 _
如果分支比较多，用：
$ F0 W1 I& D$ Z+ i$ }. L inspect <expression>; J; Y; `3 n3 Y1 L) {# s0 a
when <constant_list> then& T4 N. [' y% s& q
<statement sequence1>;
: z+ U# J( w' d0 A when <constant_list> then1 q' G" i( l5 A% B- E6 g
<statement sequence2>;
, k" B) J3 G d ...
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<statement sequence3>;* w$ h; W; r0 r% Z+ z, Y3 X$ y
end;
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2循环语句( N; a: t5 a" k X7 r9 v
(1) from <statement sequence1>- \2 v9 B) }$ ^6 v
until <condition> loop% K5 H. S& G4 [
<statement sequence2>;
" h6 E3 x9 d' {6 _( H end;
3 V- E) z! A T9 t* I+ Z+ \" ` (2) while <condition> loop
, u* d& W7 j, @. U5 s <statement sequence1>;
0 r3 h0 k: i0 i# l/ g end;
" w2 J# D g3 s2 X3 s6 z (3) repeat e) d3 c/ i) l1 R& Z. j) \
<statement sequence1>;
7 N; L( t$ n8 v u M- g until <condition>;/ r& _$ F' R- Z$ ?: W. a& h& S
(4) for <condition> to <condition> loop
* A5 r' `4 V5 I1 g4 G <statement sequence1>;
5 s T1 q. ?4 ?: n next;% E/ a6 x$ O1 d) p5 Y
3中断语句
5 Y8 m. f2 V) L4 R. ]7 M6 l waituntil <condition> prio <integer expression>;* j" O9 y8 l- m; T
g6 {4 n2 K6 i# m9 W0 j D, t6 A) z9 |0 n! H% ?" v
以上为常用的函数！
* k: j- l8 Y6 M0 C$ W还有很多，如有需要我把资料发到你邮箱里 $ u/ u( h" d4 s4 V
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