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发表于 2012-11-13 08:48:12
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1判断语句
. q1 z$ N$ o2 L# a/ h- r if <condition> then; I6 @: Q$ r- S7 x
<statement sequence1>;+ b# j; W# {( o
elseif <condition> then
: o. e, q) [) t% q. U ^7 H% t8 k. g <statement sequence2>;; a" T0 q2 k. @
else * b) Y3 P" G6 W4 M& E. j4 _* R" x& o
<statement sequence3>;
% z( x P7 u$ Y: }2 h) K/ t end;
* Z7 R: k+ m7 ?0 V) J6 x* ?如果分支比较多，用：+ T+ }7 M- x% [+ I! E3 f# [5 j
inspect <expression>
, O0 O9 Q- i3 Q" j* @ when <constant_list> then* a8 H) A+ X8 } {( q
<statement sequence1>;
+ y0 [' }; x" f# { when <constant_list> then8 o/ u# O$ Y8 E& e) Z+ D' t
<statement sequence2>;
f! V7 \: e- I: Q. s6 R V5 X ...; [) z |' `; Z6 ~5 t
else
/ S9 B! N/ y z8 g <statement sequence3>;$ u0 s5 q. X5 W& D& c; S. q z) ~
end;4 ?( [: P w6 c5 E5 j# S
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2循环语句
M9 G8 S( J* U7 }: t% J1 i (1) from <statement sequence1>* L" y) w! W* h' j' V b- K& A* v
until <condition> loop
C% \0 o' w0 q7 w; _& O0 A <statement sequence2>;3 X" z+ E1 I: H4 L# y8 |
end;- g, D+ P3 s g0 v- T. |( E' j4 `% L
(2) while <condition> loop
7 h8 _: H! Y9 ~) ^4 m e3 ?3 j <statement sequence1>;$ @9 M4 J0 J: ]) X3 y
end;1 k4 p6 J8 Y9 [6 p5 [
(3) repeat
! h: l$ H0 a$ @4 ?0 q! U k# l <statement sequence1>;0 S( I+ t7 t. U
until <condition>;$ ?1 m+ S: |5 F: [. M
(4) for <condition> to <condition> loop
/ ?4 S1 U) D I) l1 O2 n6 B; N <statement sequence1>; T. Q1 h2 i" u6 \2 d8 R. @
next;% A' _* W0 H4 A0 o, p) v4 e+ S4 b
3中断语句, J+ R ~8 D: X! s
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 J. t+ p) ?% x% h还有很多，如有需要我把资料发到你邮箱里 $ e. }2 @4 a/ _! g
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