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发表于 2012-11-13 08:48:12
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1判断语句6 W, Z; P# b Z& N: H5 n z, T, y- G
if <condition> then
$ ^* y; }7 s L8 X <statement sequence1>;
: p. N+ Q# u6 o) ^7 S* d, w elseif <condition> then
/ _6 v/ v" e$ R9 C2 X <statement sequence2>;
. q1 D" q7 q6 [- ^5 v% u else
) X+ m5 ?% n7 r1 [1 a1 x <statement sequence3>;
, R& {% @. O I5 | end;$ Q+ F% {. b( F- z6 n
如果分支比较多，用：* Z/ U. @$ l" C$ a% X
inspect <expression>' `" i" s3 y4 h4 |2 y8 I" A9 _
when <constant_list> then
# M8 }. ?$ \1 r5 d; ]! ]% d- V <statement sequence1>;! r0 G1 ]) m U" k: V
when <constant_list> then% {6 a% H( _9 V! k, n' ?+ X
<statement sequence2>;
& A8 u- ^' I# {% y' t ...
# y, ~9 g+ |4 M+ Y5 N' O4 [ else
6 p7 R) r% D( X) D/ d0 N5 v <statement sequence3>;
/ T6 g+ o9 t* P' X6 i6 Qend;4 q+ d) R4 _. ~" K! Y
: @8 x1 ^3 T6 k2循环语句" Q x$ L) E! M0 |& Q+ N/ _
(1) from <statement sequence1>* v; ~& G( B4 C/ q, k" G
until <condition> loop
* L) p9 K1 W5 Q( ]) J <statement sequence2>;0 F' @2 v7 Z* l
end;
/ n8 B. f# p3 a' x- D (2) while <condition> loop
/ @8 V" K; E$ U0 g* m- l <statement sequence1>;
, r" O- b2 _( @2 E* Y end;
# A! v4 ]) w1 A+ a (3) repeat
. x0 k+ O m" Z% I+ x7 i# T <statement sequence1>;
* v! f# O8 V; }% J' E! R until <condition>;: y7 P. ^0 `! a
(4) for <condition> to <condition> loop
o! W1 N$ v; S* o! o <statement sequence1>;
7 {# n( x( F% X* Z) h( c next;* m7 Z, N3 i8 x$ [6 x# G/ \
3中断语句$ ?/ \& r' b, `" f: F
waituntil <condition> prio <integer expression>;
! @7 x- Q1 ^! Y: C* C
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以上为常用的函数！
! I) L/ d2 |& H8 t还有很多，如有需要我把资料发到你邮箱里
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