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发表于 2012-11-13 08:48:12
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1判断语句
* j1 _* Z4 Y% m Y if <condition> then
4 U% B/ C# I- h& o, J. \ <statement sequence1>;% {1 |! M( O1 C: |1 |8 M5 X8 z: {/ m
elseif <condition> then
% j3 ~8 X8 J4 _# t4 _' L d( I7 s- I <statement sequence2>;
5 g0 s: g& o$ Y, H% v else
# }! \" D( G! _ m9 J! ?( s2 j* ^! f <statement sequence3>;/ g7 r) h# x6 Q+ L; p% s! z1 t* y
end;! O+ ]% `2 r' n: Q3 ^4 f- x* O
如果分支比较多，用：
2 J0 n" y( y7 w8 Z" q) ] inspect <expression>* [! q# G' L! Y, d3 \( L
when <constant_list> then
$ \/ l! }6 Z8 H' ~ <statement sequence1>;+ _7 g( F! [4 B3 S
when <constant_list> then
3 f" Z! A5 `3 J/ Y: ?0 C <statement sequence2>;" I& R( w$ b( H& G) Z
...
: P- z+ l* L- G8 \# J/ \ else
2 p! u8 I, r0 Z# w( S' @ b <statement sequence3>;
2 q" i* S- T; k/ E4 Q8 _; P: p3 S! oend;) Z! @) L3 u; ~5 p) O! e* y" S
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2循环语句+ t. P9 E" k- _* d+ k
(1) from <statement sequence1>
: ^2 A- g: L) C. W; `6 c# q. R j until <condition> loop: V8 G8 P" R7 l; d5 x& J
<statement sequence2>;
4 d' [5 |7 |$ N o6 y* Z end;: w: L3 K# }* X
(2) while <condition> loop( B3 s$ n4 M. a+ T1 I
<statement sequence1>;
K' k- D6 Q3 v- a3 h, c" T9 g end;8 O* v' L& y: Y9 o& X$ A8 O( D
(3) repeat 0 {) i: L$ u9 O3 ]7 V" j. g) ]
<statement sequence1>;
( j0 ^7 L# \+ w1 d until <condition>;
' X/ J, W [3 R (4) for <condition> to <condition> loop2 j$ K- o' o4 k. u
<statement sequence1>;
8 N: a' g& u* Y3 C0 N3 g9 S next;. x6 q0 ^ I/ H. n: e5 K
3中断语句
5 [1 D5 J6 a; u" z% F waituntil <condition> prio <integer expression>;
b9 f0 r, x$ }- ^% |6 x+ u
5 K1 m& O/ \& p$ f# v3 ~& h5 }; F( k" A/ u! F* Z( g" G
以上为常用的函数！
3 Q& O6 x" G2 u4 _% L- p, u! Y+ d还有很多，如有需要我把资料发到你邮箱里
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