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发表于 2012-11-13 08:48:12
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1判断语句
3 ]0 v- ?% W& W$ o- m if <condition> then2 E/ E- K6 z* Y. d- H) b8 I2 \
<statement sequence1>;8 r1 x2 A m$ l: V8 v. F. D" A( h0 O
elseif <condition> then
* E* m3 `3 ~, R) K <statement sequence2>;
" @) X" `7 Q2 [4 ^8 |2 M& N else
1 S2 Q3 B8 m" V1 W q <statement sequence3>;6 G. b6 f- z4 J# N9 A- j
end;6 x- h. }' l& @3 l# r% c: b
如果分支比较多，用：$ Y/ V3 d: y3 t
inspect <expression>; z0 R/ s5 T% d- I2 s1 C
when <constant_list> then6 @( }0 V& e- _% ]
<statement sequence1>;1 k$ O* c; u: k. A; x" f F- ~3 f4 R2 j
when <constant_list> then9 k2 K# m$ h7 B' X0 X
<statement sequence2>;+ Z5 c. a5 k: B+ Q+ y9 k( G/ E
...6 n6 W. `9 t9 Q4 s$ `$ G
else
1 f3 S9 s |$ `; \1 t <statement sequence3>;7 x/ z( ?3 o4 p) D0 p: P" P
end; |3 t8 B$ w& A3 q/ M# `% A
! y; _* w9 j! {8 |2循环语句6 x; B& C! C7 z. |) Q$ b( x
(1) from <statement sequence1>
& [+ G( t& H0 V) d2 o) t, R& q until <condition> loop
, K, F' I7 s$ ] <statement sequence2>;
+ V7 p" w( D0 R3 f& M6 B. @. Q$ f! l end;
, M0 c7 W9 T+ M5 `! }9 Q, _# {) z (2) while <condition> loop, D# a+ m; }% n9 h$ X9 S4 G1 A
<statement sequence1>;
. G& y: }. i e" }. { end; h5 h: w3 B. t* N
(3) repeat ! P& r; K0 R8 v' R
<statement sequence1>;
9 `, @1 R6 C/ k; W- c5 \ until <condition>;
$ l1 }& P) F) J$ F8 w& o! h6 d1 E L (4) for <condition> to <condition> loop
( T0 h- y2 R$ { <statement sequence1>;
6 a0 y, [' x' y next;
$ }3 {2 ?& H# Z1 c! [2 K3中断语句
8 G- s' Y: X- W waituntil <condition> prio <integer expression>;
& N& _8 k1 T2 U1 v8 _! K6 s. g* n9 j2 E9 y
: m( |2 j6 m! H2 B% l! |. _以上为常用的函数！
+ x) C h! w, U2 j5 j; b还有很多，如有需要我把资料发到你邮箱里
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