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发表于 2012-11-13 08:48:12
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1判断语句& w' g1 [! w: t5 R8 C2 ]
if <condition> then# A9 `/ m- x" b# G$ m
<statement sequence1>;
) C* r! F/ ~- n3 ^1 w1 G9 V8 a5 a elseif <condition> then( n3 Y& f( I' t" t
<statement sequence2>;
: W# a. }9 w% R F: u X else
8 n8 U9 E- z4 s$ t2 V6 x/ j% L <statement sequence3>;
2 X' L3 q5 {& o& y1 J6 y end;
- H y1 @5 L. Z如果分支比较多，用：
6 ^0 [7 P( \& Q; a9 ` inspect <expression>
; a% B7 F0 z' k$ D: v when <constant_list> then
2 g2 P! B7 Z) ]; r) J <statement sequence1>;
& o( P& B( c; F/ n4 a1 R when <constant_list> then
3 ~& G3 q) [2 l) k, G <statement sequence2>;
! m2 D. O; e% j ...
% p$ ?0 N h( c" Z- V else: |" z* E4 e( ^ c& E4 `$ U7 C& E
<statement sequence3>;+ L2 Z# U" {8 J1 g, x
end;
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2循环语句
1 c9 Q+ m3 \9 D. _; t (1) from <statement sequence1> `. U; q% R/ @7 \
until <condition> loop5 y7 X, p$ Z0 F' B( P) k
<statement sequence2>;9 J. L. L4 s. X
end;
7 v4 {1 L2 g" a( s6 d3 g (2) while <condition> loop2 q, d9 U9 l+ R+ V
<statement sequence1>;5 Y# K. @1 D9 h+ i3 V, t: }
end;9 E( m1 x: Q* [, P
(3) repeat
( f" P6 r& c3 g4 ~6 L <statement sequence1>;
7 w$ {( H: v2 Z( P, F/ Y until <condition>;* u7 v' v! J+ c' E
(4) for <condition> to <condition> loop3 s2 ^% E+ Y0 J8 J, r
<statement sequence1>;
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3中断语句; Q( B# q2 b7 H! K* }
waituntil <condition> prio <integer expression>;
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以上为常用的函数！8 G4 ^6 }0 F* E3 {" W! o
还有很多，如有需要我把资料发到你邮箱里 $ U6 e! N# h; r* l$ |
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