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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
0 m- d& D* y9 Q5 n' e& V if <condition> then n! X4 }( _! S0 w8 W0 o
<statement sequence1>;% `4 t: a; j, k- \. j) U
elseif <condition> then9 f' Q6 o9 N- R; n
<statement sequence2>;
: ~+ X0 X: I9 J8 K0 c- W* e else 1 v' f' j" M; l+ K
<statement sequence3>;
) T/ V8 l( K% p& ~+ ^6 K, E end;. L5 h9 L1 ^% h: v$ ~
如果分支比较多，用： ?. u7 R2 U' z3 i; ]+ R- S9 ~$ Z7 y
inspect <expression>' Z* C7 {7 b# p5 W) ~
when <constant_list> then7 [! p8 _% Y! u
<statement sequence1>;
' Y, B0 L+ f w6 K3 ]3 s* c when <constant_list> then N. G) l; \% L
<statement sequence2>;
# [3 Q9 E6 d2 k6 Q( g* U ...
" Z( B% _* B- D8 T else
" @, Y9 Q0 k) ?- P: f$ m% f9 D <statement sequence3>;* V* y l' R3 X2 r
end;
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2循环语句
- v+ p; |6 [$ j4 I# O (1) from <statement sequence1>
" V1 H( A' Q1 n* J until <condition> loop% c( D& h5 _$ t# v: S" L: p
<statement sequence2>;
) U7 \4 B; |8 [9 f5 h* D end;
5 A( B) n6 c5 ]5 r9 U( Q9 A (2) while <condition> loop0 I- U4 o% h& K: e; O: g
<statement sequence1>;
+ t/ O7 c8 r" h( V/ |. f end;1 l" ?8 F7 n5 ?" j) t
(3) repeat
. z/ [: g2 C1 W1 R& M. d6 \ <statement sequence1>;8 r' x" h) n7 V u8 s" G
until <condition>;
8 d5 x, g6 i" m, D2 {5 [, Z8 y (4) for <condition> to <condition> loop
: e8 ]0 O8 Z7 ?* F7 s/ F2 ? <statement sequence1>;
, u9 u' D' B- D3 L0 ]) W$ k4 ~: q next;( ?* t4 ^; [6 f' ~2 W
3中断语句- ~* k) F# e3 }, ?1 { ~ A& K, d5 m* a
waituntil <condition> prio <integer expression>;
& V+ ]. F3 d+ ?3 ]7 L( f3 b' z4 g: A3 d/ z: t
+ }% Q* u! Y7 c7 e以上为常用的函数！ z+ ^8 G$ ]; E% ]9 g
还有很多，如有需要我把资料发到你邮箱里 + u; {& s: Z D D
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