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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
4 m) D; O5 ]# S# \& ?+ j if <condition> then4 h2 z" c# H0 K: j, a
<statement sequence1>;
+ r0 A1 Q5 O% |2 q" b' h elseif <condition> then0 x M8 t. S: [1 N7 M7 ]
<statement sequence2>;) g4 A% o& z5 r& f! G) p3 t6 o
else 1 ~& o, n0 H& v
<statement sequence3>;) i: U. c2 f( s& y3 K$ s. A5 d1 h3 t
end;5 d' A1 @( Z8 T. n) S! | i; e- W3 B
如果分支比较多，用：2 Z* A( ]0 r5 Q: u; y4 r" e& k% \
inspect <expression>: e% j1 \& f7 o: ~! U+ V9 u
when <constant_list> then; I9 w1 G- } Z F0 [- O
<statement sequence1>;/ L: u2 T" t; ]7 i
when <constant_list> then
2 D A- m6 X; i* u4 o7 h" x( x0 I <statement sequence2>;
2 z9 b: @* E2 o8 ^7 H g ...
7 o: ~+ j4 g% f1 \" k5 l else# \! ~ E) _! m: \4 W; D
<statement sequence3>;: }8 r5 b* p7 |
end;
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2循环语句' {* y* r! L* }5 d
(1) from <statement sequence1>+ {# @! h& b+ [0 t- B Z' b
until <condition> loop
" i( l f, X- A4 H- h) R, N, r <statement sequence2>;- |. |) v; p0 ]
end;
, j, f, o. D9 G3 V5 P* ]/ j8 K (2) while <condition> loop9 \& g7 k% Y1 f
<statement sequence1>;
8 P1 d8 Y E6 ?# U, n/ x end;0 I k/ W% s; \2 C. M/ ^
(3) repeat # H/ F% G$ z$ Z# c; E- b
<statement sequence1>;
K* X4 a5 m2 X until <condition>;6 k3 {) x; I# L; z' N L
(4) for <condition> to <condition> loop
5 k- I& G) ]8 v$ \+ P( [- n <statement sequence1>;
& J; t! |* z r( S. F3 \) Z next;
( E, M1 S* p. ^3中断语句
! i2 @3 M- r6 q! z& K waituntil <condition> prio <integer expression>;
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' ?/ \4 N( r7 I; p以上为常用的函数！) ]" F9 g' T0 q6 p, w4 _1 Z
还有很多，如有需要我把资料发到你邮箱里
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