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发表于 2012-11-13 08:48:12
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1判断语句
. e0 [$ k9 }. A; A. k' e5 z, H& _ if <condition> then" V- O1 j, P- S; C9 }' R* ]
<statement sequence1>;
% Z# [; @* U" h( } elseif <condition> then0 d# a6 w) |, _5 J+ A, a4 o8 b, k% M3 J
<statement sequence2>;3 D: }# ^9 N8 u# U, `
else
/ y5 e8 P" ~9 ?, C' A) i7 k <statement sequence3>;1 N! \# a& ^; I* ^, u. a
end;
+ b1 W$ [/ q! w8 t* |3 K如果分支比较多，用：1 p( ^$ G& \4 E
inspect <expression>/ a- c6 F9 P" n$ u3 w8 U3 R% d
when <constant_list> then& x3 W; u. U# I E+ u/ `5 J% t
<statement sequence1>;
% h1 J% e1 e" p3 v- c when <constant_list> then3 A5 m1 B% j7 F# z
<statement sequence2>;
- _" N# [! `7 C) q ...
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<statement sequence3>;, I3 O3 v/ }9 @* p g. i
end;
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8 v1 v9 g" I0 c: N, Y2循环语句: i( f& h7 U+ L5 x
(1) from <statement sequence1>) F9 m/ t2 `! I: A$ `! c
until <condition> loop
( h" [8 y6 S- w1 A3 I <statement sequence2>;
9 f2 r3 O7 R4 F( N! s0 q! a6 r( U end;& g$ f. n; e& D+ u# [
(2) while <condition> loop5 b/ Y0 M7 |$ D0 n4 d( J
<statement sequence1>;
) _. e5 T" |7 ]# x* Q end;
% R @' ?4 {8 `, ^1 s6 @7 ` (3) repeat
5 q, x e2 f# s+ Z! z8 m0 e( X <statement sequence1>;
! X* t1 B c. _5 ? until <condition>;2 @$ m* y) G1 t: J
(4) for <condition> to <condition> loop9 T/ y5 D7 U1 W! \5 e
<statement sequence1>;
# V$ Y) O4 p% n u next;
' g$ e' N+ S8 D" p. m3 i. W3 |7 z3中断语句9 W' k" S$ P- z+ b, p4 V2 Z" A7 y
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
/ z3 k$ f4 {; V/ D# x还有很多，如有需要我把资料发到你邮箱里
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