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发表于 2012-11-13 08:48:12
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1判断语句* @+ h" l3 Q. c/ Q
if <condition> then
W4 B3 F1 {( d8 a <statement sequence1>;- X5 E$ Y6 d3 b* M5 e
elseif <condition> then
$ N- T8 {8 r% f& O <statement sequence2>;8 t2 Q# [' O# r
else
+ U: ?$ ~: }- L" T <statement sequence3>;% R% z) ?6 C( h# @- G
end;
* d- L# C% @" p0 N% Q; i如果分支比较多，用：
% _& D0 V/ g1 H5 m2 Q: c" k inspect <expression>3 D# ]# h8 g+ K2 o. t. c
when <constant_list> then
* ]( L$ ^, P a9 j1 e: u# t% u <statement sequence1>;7 Y2 i$ H/ }4 s) i5 D
when <constant_list> then4 h3 \, N# T! T1 ~, k% _6 C# }
<statement sequence2>;
- E9 ~5 M" ^4 u# T# X2 {( b- ?7 u ...
9 `# H/ y8 D$ l& y- K else
: R& z9 ]# N) z! u! k <statement sequence3>;
* w2 ]) d! `& f6 ]3 eend;
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# T w' G; i) E# H. r7 k2循环语句
/ H; c/ N! m. f! ^% c% h, C( i (1) from <statement sequence1>4 D; e, ?0 k# K i5 M6 u: y
until <condition> loop
' |% j5 Q( o8 Q1 }+ |+ q <statement sequence2>;7 c6 Z k$ q% _4 Y0 j6 G
end;
& e- U* {# K# A, R% x, ?8 j& Z (2) while <condition> loop6 T% g; H4 a5 f3 F9 j2 v
<statement sequence1>;
1 O$ P6 s+ F2 E) Q$ ], i" c end;
# I/ ^9 v6 r8 r! ?( @; r0 {, S (3) repeat
9 r! t# a' D- P- @' j <statement sequence1>;2 b. J2 J1 f' D! L! h
until <condition>;
4 |6 `, R+ T/ D6 m( m1 Y4 K (4) for <condition> to <condition> loop
9 M* p# T0 {2 c+ I9 i <statement sequence1>;, W7 I9 h; z$ k z
next;
6 k4 A5 @) z. _+ I4 }9 S3中断语句$ |8 x, T# F6 F4 c/ @
waituntil <condition> prio <integer expression>;
0 E: H2 ~; E3 G& c, y! y) Y0 v3 f3 }) O- _' O' V0 \+ x6 {
9 V+ K/ p, O2 t
以上为常用的函数！+ y5 ^9 X8 F" w" I' h: M
还有很多，如有需要我把资料发到你邮箱里 % @" e6 Z( E5 |9 ~! E: R, j7 L6 i
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