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发表于 2012-11-13 08:48:12
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1判断语句
. j8 ~6 h# O: { if <condition> then6 k4 B4 k; O! b# L
<statement sequence1>; x9 D8 h+ ~0 p H7 L: F2 r s
elseif <condition> then( _6 Q% R4 R0 R" p9 r
<statement sequence2>;
) M" K* ?3 h2 s- i' Y0 c) u else
$ o. J. m/ Q( |& U; C <statement sequence3>;
2 B f9 c- J0 ]- N4 p* _; a% } end;
1 O" m" T; f5 s. t2 V6 q3 a如果分支比较多，用：4 N8 u# ]7 ?6 J9 c5 G! s( Z
inspect <expression>
( A2 ?" K; ^/ L# d1 ~4 R when <constant_list> then- a- c9 q! b# t$ b
<statement sequence1>;9 `- p. S! F9 p4 ~: d% a# R( k
when <constant_list> then
# S$ s/ a$ v8 x: y2 h8 c <statement sequence2>;9 f! B8 ~" [' M' ?' a' [- S: c# I1 v
...
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<statement sequence3>;0 D; ]+ q5 o. ~* R& U- W
end;& O: f3 c! G$ E; |4 d
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2循环语句
1 F- M0 z, D! m7 g (1) from <statement sequence1>9 k a) P" Y% E2 w/ \
until <condition> loop# B! v" f7 i8 ~* K+ n* x' V5 z+ J
<statement sequence2>;
% Q" A7 m _# q+ A/ m3 [ end;
W7 v/ }/ M, A+ o! a (2) while <condition> loop
U6 V( q3 _2 b6 x @ n: m <statement sequence1>;
, I2 `) u; b$ i4 v. Y/ h2 D end;$ Y: Z! q0 d! `0 Y( _
(3) repeat 9 A# _! R) R I( y+ x6 v
<statement sequence1>;
6 _1 Y% I# x5 K& [ c until <condition>;! ]1 \5 z1 b+ E
(4) for <condition> to <condition> loop
! U1 o: |( g( h! C& W4 _9 B# ] <statement sequence1>;; L3 P" I. L/ ^7 u z
next;) c* q- ?5 b2 Y# H) w
3中断语句# B9 k% P9 ]1 b/ @3 Z
waituntil <condition> prio <integer expression>;: b# k& m H; X0 ? z& S$ n# ^% b- j
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以上为常用的函数！
) A+ P& V- _" B- F: G9 L还有很多，如有需要我把资料发到你邮箱里 ! e! l" {/ _& }9 l
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