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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% K- ^5 g3 p) q6 W if <condition> then7 d7 a. Z, a3 n4 Y
<statement sequence1>;/ f# ]5 K, j1 x$ ?& O7 I
elseif <condition> then& ?# c& H& {) J2 V1 I# _; S
<statement sequence2>;
' W* [: ?0 [4 h8 C else
( I4 x, E% t- s G* G( k. D$ v8 w3 U <statement sequence3>;
! q; Q) `. v8 g$ C6 u4 V/ V/ K end;
9 E, m+ z8 ~6 Y( B如果分支比较多，用：
+ F5 K- I, J4 H inspect <expression>
/ _: S2 X0 x7 O( N: g% V. b( y when <constant_list> then( c" x/ e1 @; a6 c! [
<statement sequence1>;0 o! t2 ?+ ]) l- K# o5 N
when <constant_list> then
$ l4 x& A$ A; O5 n <statement sequence2>;
3 D5 n) ~+ `( V5 a ...
c+ p1 V5 w' A7 e2 p( o) ? else
* g. x2 b1 P: C. Z0 g <statement sequence3>;
( L) x9 x0 ?1 F/ V0 {. }end;
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2循环语句
! E M3 y7 P$ d9 S: i1 D' `* k (1) from <statement sequence1>
- \8 S1 J5 k# D" L v( q5 B0 n+ U until <condition> loop
- S% l( a) s/ n( n, z' W <statement sequence2>;
$ x9 r4 \: Y) Y6 w+ }) Y0 R end;: ~2 W; A2 n4 n0 @' l, w* n6 U" Z5 W
(2) while <condition> loop
( C# `5 R9 f p$ B" N/ z* W <statement sequence1>;
! T" k. b4 h+ v6 A& ~" A end;
6 C* B# p% X3 t( r8 N _5 }7 r7 n (3) repeat # ]' J2 b7 D9 }' T
<statement sequence1>;
9 Z L) ?5 T7 E until <condition>;5 Q2 I9 P7 z6 }4 ?; R, v) U
(4) for <condition> to <condition> loop2 s# I' Y* j4 w6 |6 b, [' O
<statement sequence1>;! u& c6 E( o) |# m H- H1 ~7 a2 x
next;
6 W) c1 m* |, R j& r! i5 k* T3中断语句3 k/ V" Q6 s; V: R: w
waituntil <condition> prio <integer expression>;
$ {2 w& t: x: [: U. P0 f: M
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以上为常用的函数！
6 L0 T& Z' N0 e( Y7 O1 {; H还有很多，如有需要我把资料发到你邮箱里 ; N( W8 M5 ^0 r/ V. J$ ?" P% j) X
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