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发表于 2012-11-13 08:48:12
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1判断语句' b4 s6 p/ q6 P' G, p: P0 P# r/ t
if <condition> then
- m& _8 N2 c+ ^6 T, b+ \; V" z, M3 B <statement sequence1>;# N; \. C1 I X. ?, |2 B+ b
elseif <condition> then
8 `5 o' Q1 W7 d <statement sequence2>;
8 i0 s/ @# z" O# C else 0 Q! E% z) H* s" h
<statement sequence3>;
3 Q" U2 P* Y" i+ h5 X3 n end;
/ W2 S9 u x4 j# }0 t- E如果分支比较多，用：
! Q1 C+ O" N _- A inspect <expression>
! E( L$ a2 F' F A when <constant_list> then
+ K ^4 ^ z7 w+ G( B <statement sequence1>;7 n0 n' U6 g$ X0 R6 N5 k# H; u' e
when <constant_list> then
! n. T6 x- _: p5 ?- h8 u <statement sequence2>;
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else
2 E5 ^' V) E% i, d g7 I <statement sequence3>;
6 g. G% W9 u+ Gend;( ^: m, g) n# v0 l, i
9 k7 k2 @7 D" x: o( l9 u% o6 k2循环语句
6 I1 q! \2 L5 B5 M0 W (1) from <statement sequence1>. D7 Q+ z5 d. h1 t) i
until <condition> loop
" O+ T1 p+ @/ t5 ^6 j <statement sequence2>; H1 j n ]# A, T. V! ^
end;
# @( N/ q% R; H: J (2) while <condition> loop- ]8 F% Y4 N6 T O6 S' n1 @" Q
<statement sequence1>;0 \4 e. C; O1 ]! s: y7 I6 V
end;
' ^) }' F* Z. C: X. _1 G7 O (3) repeat 9 o \ u! g {% q; V) \/ f+ t
<statement sequence1>;
0 S; ` [+ ` u5 { until <condition>;
/ a" l& g$ h$ a5 |, X5 o; S) L7 r! T (4) for <condition> to <condition> loop$ e# s# H9 a0 S* Z) a5 v
<statement sequence1>;
. N1 f. Z5 Y: G6 U next;
3 [; g4 P2 V. x+ V, b4 b! S$ o3中断语句
/ k; u* Q" v% r+ m7 R: v waituntil <condition> prio <integer expression>;
/ U# o; T& M4 {* }' A( U7 H4 l# b9 p6 x4 H
% h* w* x, R' D& w/ n& @& B
以上为常用的函数！! w" V) x2 z/ w2 j4 Q$ [6 j
还有很多，如有需要我把资料发到你邮箱里 - ?, O1 Q" b4 \- X# I: U
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