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发表于 2012-11-13 08:48:12
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1判断语句
. a& x4 {* K% `! W( x if <condition> then
! `& g" L3 H$ ^ <statement sequence1>;! y: q D! J5 V
elseif <condition> then
# U4 J6 K0 B& [9 f& q- m( d <statement sequence2>;8 t) }1 W! V. w( t3 s" Z! P9 \$ D
else 4 H9 U9 ?; U; P2 ^& n1 V% B
<statement sequence3>;
% r4 ~" t/ f+ w4 Z4 ~" j; m end;9 B0 S+ ]0 e' C. [# ]
如果分支比较多，用：
/ M" b+ P( n7 s( t8 n- Q- b inspect <expression>! }, }. `4 j0 [
when <constant_list> then
$ @7 h; d' a- |; ]5 |/ l <statement sequence1>;4 [0 _6 S2 m* V/ f# {8 H' n
when <constant_list> then
- D. n. {/ T3 W; a <statement sequence2>;
% e' \+ r3 X, Z ...
! P" A. a+ O% J1 c$ R& R$ R else- }5 w5 n# H8 X
<statement sequence3>;4 L; Z: o6 V. i4 p4 B5 ~
end; Y% d% q7 j% d4 {
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2循环语句
\/ U0 @- u" a- X3 X! x (1) from <statement sequence1>
( c& T- w% N/ k until <condition> loop+ p: [7 A+ [4 N
<statement sequence2>;0 V7 a. D" J( R. G1 ?7 K8 H
end;$ }0 h/ s6 F( A
(2) while <condition> loop
5 k2 f" P" s, z1 I0 n <statement sequence1>;
4 h ^9 h$ v6 [$ t" \9 _ end;
/ T1 o) y5 B$ F, @* ~ (3) repeat
5 O/ X" q" B4 _- e: j; x9 c) Z$ u <statement sequence1>;
2 }- a/ ]' y0 N+ X1 Z9 o8 ~4 i, o4 p until <condition>;
, n3 S# N) o1 M2 B; o; p @) A (4) for <condition> to <condition> loop
0 r" C4 F" a* o# c V: A <statement sequence1>;& ?; L4 t5 b" s
next;
. y& G! K3 M5 W8 x3 F) \3中断语句
- E! z6 m7 G! f; f( A$ k waituntil <condition> prio <integer expression>;# n2 u% S- S! o
O0 f$ c, x: P7 h$ y: M
6 ?/ I7 W% X/ g$ P. E以上为常用的函数！& |+ U0 d6 { m0 i! M
还有很多，如有需要我把资料发到你邮箱里
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