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发表于 2012-11-13 08:48:12
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1判断语句8 r! X; B9 f( \9 r
if <condition> then
# U8 S$ C! u4 @5 o# @ <statement sequence1>;; |0 ?6 Z. c9 w$ N4 _
elseif <condition> then
5 j3 M! Z$ O2 w, g- G <statement sequence2>;( v' f8 ?- l n; _( ?7 [ ]
else " L4 @+ K# E6 b/ S6 g6 V
<statement sequence3>;! B4 \( A- }* L1 L" _
end;% `8 K- a5 O% j x" E( z
如果分支比较多，用：
' m. x9 F" f' w) m8 l8 P8 U1 j inspect <expression>* H* F7 ^2 {+ T- q( t* g+ ^" s) u
when <constant_list> then
8 p' {' D# L6 t; j' p <statement sequence1>;+ b$ E- Z: W9 x9 r3 M' S0 h3 m5 J
when <constant_list> then& L3 |9 X7 R: i
<statement sequence2>;
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else
$ `6 U3 \- n$ l- H$ h* W7 L <statement sequence3>;! w+ E! q% ~5 o9 n5 b" k! p
end; Y1 [- P) f6 j3 B
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2循环语句
3 @; v0 c0 k5 Y8 n6 Q8 |, C9 L x (1) from <statement sequence1>
; p/ m. a6 e" I) s2 `7 T |. v- E' e$ I until <condition> loop
7 q6 B( ^8 M0 S, L/ M/ X7 { <statement sequence2>;: a' e* }" D, e& O( q; J! l
end;
* A4 R, B% k) Y1 ] (2) while <condition> loop! h" J. L5 c/ D* k; |, j6 ^
<statement sequence1>;
% X) ?) ~% x; P end;
, l3 j5 |. q3 Y' S) `3 l: f (3) repeat ' c1 T. `; g/ `8 z( A, ^* N! h
<statement sequence1>;
; G' ]" Q# R$ E0 y& ?" L( @6 Y until <condition>;, M9 k$ y$ `8 q8 {
(4) for <condition> to <condition> loop
3 s* V$ N3 W- A! D' C- W" s5 [ <statement sequence1>;
% ]" }7 W. |" N* U0 M- {# i next;0 l% L$ v+ M. `
3中断语句
, Z4 A& a- |: U5 D waituntil <condition> prio <integer expression>;8 e- d& E, m. }0 R3 J
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以上为常用的函数！
% r! T+ q- T9 U8 m还有很多，如有需要我把资料发到你邮箱里 - b; L. Q, z# k6 `
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