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发表于 2012-11-13 08:48:12
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1判断语句, A5 \$ u3 T# P8 ]& t: w' `3 w
if <condition> then
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elseif <condition> then
4 y" M8 @" Q' o <statement sequence2>;% m* z o1 f Q" E- J$ }+ `
else 3 _. V7 o* f b0 ~0 z5 q
<statement sequence3>;
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( p6 r# _: i2 p- O如果分支比较多，用：5 }5 |2 c3 m, c
inspect <expression>
z" `# o! d( c: H- c3 {7 S2 j# v; I when <constant_list> then. T5 B8 D8 ]# e0 ~! I
<statement sequence1>;
( D; G6 n* |+ f1 s, g when <constant_list> then s' s' z# f/ C3 E- C" _; Z& a$ h
<statement sequence2>;& G: w' G0 ~2 R1 o
...: [8 e5 C' C! q* ?" F/ {
else+ N7 x! B: S" |0 I1 o
<statement sequence3>;6 y7 f$ |! D; t% T6 H$ [
end;3 q7 _ A; A) V8 v1 c
8 h v- O* e+ H" K" x" v2循环语句
0 v! p1 ~( W6 y3 T; v$ W& Q0 H (1) from <statement sequence1>
5 Q) @3 O5 c8 |, B, Y4 X8 }- C until <condition> loop8 ^0 J/ n9 A$ s5 U0 y. N. ~1 p
<statement sequence2>;
, V! u% ^! h1 R+ I( w0 O end;- P7 n2 n1 H+ U, Q
(2) while <condition> loop
( D6 r+ f+ I- X <statement sequence1>;8 f c% L" b$ v+ ^/ c* V$ T0 c
end;
/ P9 N8 r4 A8 q (3) repeat 8 Y* o$ v+ o8 @8 V4 z9 ~
<statement sequence1>;$ `" e5 C1 T0 ~, J
until <condition>;
5 V3 ^& G0 ^/ A- }5 Z* x (4) for <condition> to <condition> loop
% T4 `$ _4 o1 {! ^2 J <statement sequence1>;
: }" }% K' L9 J( [6 T" {; r+ ~( X next;
. a# W, b9 p5 V! r) ?3中断语句
9 n6 W$ X7 B4 O' H( E waituntil <condition> prio <integer expression>;
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0 a ^; h9 n3 _% J: U, B4 L: Z% ?: r9 p
以上为常用的函数！
5 M! [9 {' g Z: j& V+ `还有很多，如有需要我把资料发到你邮箱里
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