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发表于 2012-11-13 08:48:12
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1判断语句/ f8 B# X6 g8 j
if <condition> then! a! a0 ^5 B x- f, n W- N( s$ j
<statement sequence1>;
3 [3 z3 y$ B9 P2 I; \ elseif <condition> then
I N7 p: [- O, S8 Y2 b <statement sequence2>;$ Z1 a. E4 G9 r
else - _3 r8 Y6 q) Z9 a: n2 U( P
<statement sequence3>;9 K1 W) r. ?) C( _6 w1 {
end;- C; j1 }3 m; [6 j1 z8 r3 |; Y' X
如果分支比较多，用：3 y, \. G( A6 i1 }
inspect <expression>
/ S/ l( w8 T# @/ H9 V when <constant_list> then0 D% B2 W9 y8 j0 R3 z* l
<statement sequence1>;
: o: y& W- E. G when <constant_list> then" d5 ?( g% A- S
<statement sequence2>;
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else/ I9 E: T# j0 V" ]; w' i
<statement sequence3>;- ]/ `* y5 O" B; {
end;) T" x: Q; r" A, D4 ?1 n M
1 h+ M$ \. G3 n! G" R( g( \2循环语句; n, V- M, y3 O7 ~! u
(1) from <statement sequence1>* F0 w! P7 g# b8 z
until <condition> loop
1 e" C$ y$ _9 O, n2 S <statement sequence2>;
0 q) A1 y+ v4 b0 I, t end;
6 c6 ]6 {( t0 Z (2) while <condition> loop
, M; I: I3 P# u3 q. A( w <statement sequence1>;
/ |9 m; P% ~0 f; { end;
( |. Q4 f0 W8 F1 I2 ^3 `7 ~* G, S& v3 Y, Z (3) repeat + R( T; u5 W, |7 {# ?4 t1 _
<statement sequence1>;
: Z; b/ g% x# I1 v. ^9 j/ b0 k: q2 W' { until <condition>;! b3 n! I! U! S, a: n
(4) for <condition> to <condition> loop
5 x& J+ N- F: N$ { <statement sequence1>;& Q2 D2 S0 t: K
next; c$ K* ~8 K4 n- N
3中断语句. N l. H1 w/ T7 u
waituntil <condition> prio <integer expression>;: w$ B% H$ i3 J- Q
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' \6 r1 \; j- z" |9 F) l* I以上为常用的函数！
) R% \5 v/ a9 K+ T还有很多，如有需要我把资料发到你邮箱里
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