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发表于 2012-11-13 08:48:12
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1判断语句 E+ A, L. w* U
if <condition> then
3 x2 I$ W5 |1 f0 Z! @3 O* i <statement sequence1>;
. K0 s6 C8 B6 u' O' S I1 Q- e elseif <condition> then% t' Y% Z( T" `! X
<statement sequence2>;. A, Q# {3 T) R' Z% \
else
' N4 q9 H& F. T- D& Y/ T, l$ E0 a <statement sequence3>;3 {4 b1 F' n: u$ o9 U1 k0 q8 w9 }" V4 G/ v
end;
( l- D+ s2 E# X: F) z如果分支比较多，用：
; c M* `0 A0 C& U inspect <expression>
! W$ A; S4 b' h" X when <constant_list> then0 G# X9 o% M) K1 P, f/ @' ~ _
<statement sequence1>;4 E: S1 E' e! [, x+ R/ A" g
when <constant_list> then. z( Y: k4 t M, {5 @1 f! y4 t: I
<statement sequence2>;5 G; f" p( V& r; @% f! n
..., Y/ w' x& g, x S
else
1 M6 i U: H' H8 r1 C0 X <statement sequence3>;
( s9 z2 o( I; B3 a4 p+ `5 E; uend;
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2循环语句
" h& B7 V: h- w1 e (1) from <statement sequence1>
2 ~- s' H: ?! T, S) R+ k until <condition> loop1 v0 n* Q+ |4 J! O# L
<statement sequence2>;5 M; l% x6 V" j" O# X1 H
end;
0 ~# g# N' Q9 F! J8 c (2) while <condition> loop! b) v* I& p- L0 \7 t
<statement sequence1>;$ |' Y1 _9 G& w2 W8 C
end;
8 O/ d* u+ V1 T9 y1 M (3) repeat # H( w6 v& F2 ~8 d
<statement sequence1>;! g2 K r6 G s7 P! S
until <condition>;
# X0 Y h' ?0 Y2 r3 M0 D (4) for <condition> to <condition> loop3 A# N$ T- o( P7 l
<statement sequence1>;
5 }! r- I2 L3 `# @' u$ o2 C/ k7 F! E next;
- y' y4 o3 b1 F) v3中断语句
8 D& D, s0 _6 G, ^. x, J/ [ waituntil <condition> prio <integer expression>;
2 p' l* O7 \: E5 C, _! \# @( t, w! }. m
' U+ i( b4 E2 I: M以上为常用的函数！
2 n, S' Z0 F$ ^$ d2 Y/ t. E还有很多，如有需要我把资料发到你邮箱里 ' L0 v2 o- [, L4 r
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