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发表于 2012-11-13 08:48:12
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1判断语句4 Q+ ]/ N q: W: p. i% V1 R
if <condition> then, ]; d {; m" U# _
<statement sequence1>;
3 o$ e9 @; |$ F$ E elseif <condition> then# U3 h! p4 D6 v) C: n
<statement sequence2>;/ N$ T( F: i* ]; @" G
else
6 p5 F4 }# |/ a7 W. U# E <statement sequence3>;/ ^5 V: c/ U2 Z- e+ e) T
end;% L2 i2 ~6 r+ |" H0 t
如果分支比较多，用：5 E+ W: P: p5 b1 P4 v
inspect <expression>8 q$ I" C8 I9 I% o4 n' k
when <constant_list> then
1 R" T# L7 N) Z7 x) u4 p) f <statement sequence1>;
7 O& k: _# S7 ]% p2 a7 ` when <constant_list> then
, D) y. i& _5 o" _# Q <statement sequence2>;5 ^3 X% R2 m( o1 `" S/ M' |
...3 x4 z, ?5 s( z" ]3 @: e8 x* z
else8 R4 k1 M9 I! H5 ?
<statement sequence3>;
4 x# A6 T! C# k: p# y& a8 O9 Vend;
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' b( W9 o4 x' V/ u: H& ~, t/ x% M2循环语句
/ L' K5 h& O$ \3 h0 i (1) from <statement sequence1>
, }% T2 l8 K( |' Y7 _ until <condition> loop# X6 L8 |8 g6 J- n: E3 \8 |
<statement sequence2>;
" a$ w. d' k6 ?/ _) U2 h end;
! A" R( C" V; z2 e, b (2) while <condition> loop, u1 T |6 M% K+ |9 b5 z
<statement sequence1>;+ Y8 `+ _) P% Z4 i1 C$ A, H
end;" P( A, c- c- r$ U: w- \
(3) repeat 8 A3 v1 U+ `' A/ N* O1 _2 f
<statement sequence1>;
" B$ i4 u5 }4 T until <condition>;" A$ e1 M' F* m, A
(4) for <condition> to <condition> loop
! Q) ]# K I6 A2 E <statement sequence1>;
# g5 O; m5 {! C' ~ next;, }* {' G2 S; K1 L$ @# q
3中断语句8 @& Q# c1 ] u/ M. v# G) g( v
waituntil <condition> prio <integer expression>;6 F5 |4 I K: B, [- ]# v, x/ I1 K
V. l& ~4 `3 P2 r1 M
, }0 P7 |3 |. V$ G以上为常用的函数！* f) O1 _, u) f' _1 ?: \
还有很多，如有需要我把资料发到你邮箱里 4 s: a/ J' n* _+ M- w9 A1 n
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