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发表于 2012-11-13 08:48:12
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1判断语句
0 ~# i& s5 h& r( ^4 B8 j if <condition> then
5 q x( L# N" T <statement sequence1>;
% X! S% ]* w3 |" q% n& ^' K y elseif <condition> then2 I6 c2 {, Y* L" ?5 u3 P
<statement sequence2>;+ a) |1 N3 b( U. H# e
else
( V7 W6 N$ C5 `$ O6 @5 n <statement sequence3>;6 f& v! F4 }/ S% y5 F) \
end;' f$ ?% t. H$ A: C+ [
如果分支比较多，用：0 |2 Y2 }3 \- G2 Q/ z1 z8 A) y
inspect <expression>
$ M2 D3 y b, h. ?5 i" D when <constant_list> then
; E( ?2 U, h$ r% t) a+ A+ O7 t <statement sequence1>;* I- U8 T6 y4 i5 R
when <constant_list> then
, w& f7 Z- n, L+ U! e4 j <statement sequence2>;
9 m9 Z! [9 u# S4 b ...
+ J i5 x4 ?8 Q+ S e/ W* Q else
- ?& N" C+ D9 A3 W <statement sequence3>;! s' ~) Z8 {/ Q; L/ B9 Y+ Z; X( i+ F0 ]
end;
- @8 H H( T b$ U6 }
9 |& U9 u: \3 `: N4 e2循环语句
7 q: C3 q: u3 I: R5 g (1) from <statement sequence1>
0 ^( ?6 h# U# _ until <condition> loop# b! f* o) H0 W6 r* P* h. I& [
<statement sequence2>;
5 v. ]- A/ U% Y* k* M s end;9 g8 D9 R3 I# O/ G( l2 l
(2) while <condition> loop
~2 Z0 Q- o5 A& [, C* U) D <statement sequence1>;
H7 [, D/ f& g! p; c end;
8 P0 q6 D8 O6 u (3) repeat
9 R0 _! ]0 X" d" S2 f <statement sequence1>;
l4 J# t, e/ b' Q2 U" R3 Y until <condition>;
( K2 B' F- @2 M/ @ (4) for <condition> to <condition> loop! m' i8 o6 _/ C! j: R
<statement sequence1>;
2 x9 a7 {6 L2 K- T) |3 H+ ~9 ~ next;
5 e* {+ W8 E3 f# V) S! x& Z; f3中断语句+ n" }% {, D1 ~! B
waituntil <condition> prio <integer expression>;0 t- P! c: Y5 F" A8 D5 G @
9 f. u% {$ P1 Z/ R* m0 h
0 L p# L# q/ l' ?7 O/ Z以上为常用的函数！
$ m( C! Q$ {: y* m9 I! j/ }. T还有很多，如有需要我把资料发到你邮箱里
# L5 y o% ^$ u/ v0 U/ I0 m" u' `: P( L0 N; m5 w, i* j
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