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发表于 2012-11-13 08:48:12
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1判断语句2 H8 T! |9 e% {* T9 s
if <condition> then
+ Z0 j; Z6 b4 y: \: u/ r9 W <statement sequence1>;7 X& u, [# g0 h- [ I
elseif <condition> then3 i4 V9 F/ T- F0 _
<statement sequence2>;6 x7 Z6 R9 a7 a
else 7 }( U; S7 S7 F
<statement sequence3>;; A3 ^1 _4 B0 D
end;
4 n4 H' Q2 F) J7 ?如果分支比较多，用：& R3 |$ p5 u( m, W
inspect <expression>% R% D9 ?- s+ y$ {# }/ T5 U9 V
when <constant_list> then
# X# t3 y8 Z% t0 P0 N1 L0 y$ K <statement sequence1>;
/ z' r8 X2 F1 L$ Y* |7 e4 }! c when <constant_list> then
$ t- m2 A+ l9 R <statement sequence2>;
5 Y' q3 a2 g$ _* u6 _4 N" d5 y ...
0 |; ^" y# h" s; g else
. [$ e3 n2 u4 {' W <statement sequence3>;( w1 d9 z" s+ o8 D A
end;0 j$ O, T: d' k
8 o0 k% _: [8 H6 [$ F2循环语句
. M$ o; O1 u6 |* _. w! R$ Z( Y (1) from <statement sequence1>* [0 H5 i# T4 L9 F; K( j% a
until <condition> loop
% U2 o2 j6 D# v$ R z- u3 e& J <statement sequence2>;0 O7 X/ x+ }) h h1 F2 z0 u
end;6 B+ D/ @. A! V+ B) }
(2) while <condition> loop" G9 a% `& }! w
<statement sequence1>; m% C" }; n9 L' a
end;1 f3 ^, A' T( V. {
(3) repeat
. `; i/ T( F$ Z$ r; ~ <statement sequence1>;
6 h, E' i* `$ K4 T until <condition>;
. N' w; t* ?; B% Z6 d (4) for <condition> to <condition> loop7 U; {5 o5 T$ k% |1 s
<statement sequence1>;
& A% O; U2 P) F2 x2 h: } next;
6 E- U; A4 A9 v& x- u5 k' F3中断语句
" O7 E) L6 m7 e; V: C: k waituntil <condition> prio <integer expression>;* V( w4 C/ V6 I
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以上为常用的函数！: n, ~8 u- |* {8 G. L U4 q. l
还有很多，如有需要我把资料发到你邮箱里 - D7 a' _1 I: m- h# ]. c
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