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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
$ h$ I) N+ w M( L* G2 B, w if <condition> then+ l8 b4 B2 B$ t; O# N4 X
<statement sequence1>;9 g h7 w: n N0 `2 C+ A- [) B
elseif <condition> then
# u( j% g$ h0 y$ C- W' M <statement sequence2>;
* n7 |% t/ t0 \' l else 7 K; I6 V. t( h4 x5 X
<statement sequence3>;
2 O2 U0 U7 H0 O8 j end;- T4 A3 g2 u# {
如果分支比较多，用：
) D" [9 X) Z8 T2 g. V inspect <expression>* |# ]$ C d7 R7 C% @; ^) Y
when <constant_list> then X G( M% q% ^/ e: r4 k
<statement sequence1>;& w; S- f, d, |( u7 `" W
when <constant_list> then& y. i, c& T" ?; z
<statement sequence2>;: G, l/ |) x; t* Q5 G# n. ^
...; ?; p6 R2 Q4 E' h/ p7 \- {- T4 P0 N+ h
else
5 H$ f6 Y: ~. E+ { <statement sequence3>;
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" z1 B) z- j" q0 W9 O3 i4 \& c! @2循环语句
- _/ T$ ^" G5 G& V G (1) from <statement sequence1>
" r8 I+ ~) `% X- h until <condition> loop
$ e. `; ?9 [5 z% l <statement sequence2>;! j3 o, Z) u# v) }) {
end;' u% c2 w- i G! q6 }* ?3 p
(2) while <condition> loop
! z0 M$ r1 K8 i <statement sequence1>;, E0 N- W I" H2 u1 }9 i2 J
end;8 O" {! i7 C1 a [
(3) repeat * k( b% D5 @6 m1 i6 V
<statement sequence1>;+ f7 x2 d8 Z$ @! V/ g5 S3 E0 D
until <condition>;
( [6 H( H$ N% o- t& n! a& F" f (4) for <condition> to <condition> loop
- d% r( T% i" f2 a3 a: `- H <statement sequence1>;
: L. X6 n- c4 E( F next;
9 y1 u2 k' p' `. M, @0 Y% ^# r% p3中断语句
9 @3 K% G V! B- i8 P, Q8 V& N waituntil <condition> prio <integer expression>;
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以上为常用的函数！8 p6 @0 ]7 w; ^9 ^4 r* [
还有很多，如有需要我把资料发到你邮箱里 % g& \: H! V0 D
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