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发表于 2012-11-13 08:48:12
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1判断语句
% u# w, y3 }4 ~7 | if <condition> then
8 o7 k# _. g+ @, u7 ~ <statement sequence1>;0 B8 r5 t; B6 K8 m# D
elseif <condition> then! T( m, C% `8 l3 H% h3 H1 _8 Z% ^8 t; r% f
<statement sequence2>;' J! ?0 G0 }$ L# V$ x
else
0 X" G. C2 j7 Y" `; z- `! V <statement sequence3>;
" m1 t4 Y# A3 [+ L A2 u end;
/ M2 O$ r! @: T如果分支比较多，用：
8 l7 }2 T8 Y+ } E inspect <expression> r z$ ]1 \5 b% y; s/ F/ m
when <constant_list> then+ K2 }: S. ]( u! u( Q9 T
<statement sequence1>;, c0 @+ D3 @' k p% Q }# H
when <constant_list> then/ C% h* L. A! M, w
<statement sequence2>;# w2 Q) j* ?" o
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else
. P1 r6 M. ~- _ <statement sequence3>;
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r" T$ Y! W1 `. H2循环语句
+ S% R8 Y! D V/ z$ @* H6 k$ J7 p5 g (1) from <statement sequence1> h7 V1 g" L5 s& N; W2 X: c1 u
until <condition> loop
, s" ~2 n ^* B( I0 } <statement sequence2>;9 o9 C. R; H, H
end;
7 f+ K5 L) _+ l6 t, G% P (2) while <condition> loop; r) z6 T. I$ \( O B( l
<statement sequence1>;' y' l* r5 U/ W( R# a8 p9 ]; f# W
end;* q+ C- @9 w: o8 i/ y
(3) repeat
! v% r) A/ ^. Y+ _* p0 e r; D <statement sequence1>;, A6 p3 ?( }* |4 @, Z4 V' R
until <condition>;
% B0 M0 G$ ^. c (4) for <condition> to <condition> loop
4 O" c1 k- Q0 x <statement sequence1>;2 @6 \# u" e( K. h4 O2 y4 |1 z
next;7 j9 s+ B$ L* i# i8 s( L6 R
3中断语句
: U" D m; A* I' w- @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！1 G, n( @+ }8 R1 m2 K8 M6 z
还有很多，如有需要我把资料发到你邮箱里 . H Y& z" M1 C. g" K& w
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