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发表于 2012-11-13 08:48:12
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1判断语句2 `: N; l7 g/ u) G1 g! T+ d
if <condition> then
% T% P- k3 X- } <statement sequence1>;& S) W' K. h9 V' h
elseif <condition> then! t5 t: x( W; r
<statement sequence2>;; C+ [: T1 L/ Q/ j! r6 q6 a7 B9 y
else 0 Q& u' S& C# |* q4 n
<statement sequence3>;
) a1 d1 W4 @5 p+ e @2 @- D end;
: b$ O U$ x4 Y+ g2 \/ W0 @2 D如果分支比较多，用：
( o7 V& F; d' w' I. n3 q inspect <expression>5 z& |/ @4 D, _4 r
when <constant_list> then$ q& d0 x G9 B
<statement sequence1>;: m' x5 R$ w* `4 X! x4 c
when <constant_list> then
3 W) b3 \$ ~8 _ I: o4 ^+ C <statement sequence2>;9 S3 B4 `4 K% w
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else6 |$ d& H- E1 S; H2 L9 M, s
<statement sequence3>;3 k \+ l/ V* X2 S: a* V1 F
end;- j, n6 a3 N9 \- {; y: ]5 j
* f3 j& c$ p9 w2循环语句% d* k4 B- I0 Q& h' R
(1) from <statement sequence1>
5 o" h$ I' P$ S, x2 `1 W until <condition> loop
1 V: W' t* q& R0 H4 D5 ]4 h <statement sequence2>;! _/ e$ `: R0 d
end;9 Z! |1 t' `1 a2 m
(2) while <condition> loop, T/ C6 T1 l8 I& A; R; u+ u
<statement sequence1>;1 D& Y4 ]+ F V- c
end;
& m9 d9 Q/ X$ m# d* A" A* A (3) repeat
' F% Z2 G6 f" Y9 q3 e9 x1 ^3 G <statement sequence1>;5 H' D* u9 ^# X$ t A
until <condition>;
t0 l8 H! j1 K8 [2 Z8 T# W (4) for <condition> to <condition> loop2 | ?* R* D4 n5 O. U$ m3 R3 p$ w5 W
<statement sequence1>;
! G/ N; t4 c ] r9 s7 b next;
. _9 H+ e$ v6 W3中断语句* Z- N: U% v0 k, A
waituntil <condition> prio <integer expression>;2 r: n8 Y# W5 `) `4 W( m8 p) P
_: }7 x& `5 n/ T8 A5 Q
) J& n) \ K& E2 H# i4 r, q
以上为常用的函数！
" G" f) x# v. g* M还有很多，如有需要我把资料发到你邮箱里 0 T& ?8 B" s o3 t" h) N( W1 l
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