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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
) j7 {2 S1 x! e! d if <condition> then" O/ B. F# F5 y9 b9 w9 q
<statement sequence1>;) r1 m' y) I4 a, C: O% l
elseif <condition> then4 Z& V% `, _" N1 s* j, S
<statement sequence2>;
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8 a9 q( r' G% C <statement sequence3>;7 g: s i0 c( {+ g; @
end;5 b+ l- R6 t. o' c
如果分支比较多,用:4 k9 Z) D- {; o: I' J6 y
inspect <expression>2 @ f* J1 A8 N( A
when <constant_list> then, b. e' }: x) B# S
<statement sequence1>;% I: i2 q# E% _3 Y/ x4 d1 \$ f
when <constant_list> then1 e8 q0 T0 B. k( m* D$ \+ v
<statement sequence2>;
. a3 N3 q* \7 v9 t ...
6 x, D0 x& @9 J2 @% L$ h else/ z1 r/ `5 R$ L7 S0 ^
<statement sequence3>;
% I1 k' D' C( j4 P5 nend;7 V$ c) r! C6 z7 [7 e h& F
1 L; i( w4 r. a5 d8 t) S0 c4 Y2 ~9 m2循环语句
, E. j y9 P, f8 F' O9 X3 ? (1) from <statement sequence1># T0 n; F$ t! \ X# i6 p
until <condition> loop. c6 {* b8 @2 P' T! t& _
<statement sequence2>;6 E; l; J+ }* v* {
end;( L$ Y0 f& {% r R- |! N
(2) while <condition> loop1 I; Y! { X, z! r0 s( o
<statement sequence1>;
- ^% d5 }3 F/ A+ q1 f# v- k end;
4 q! N7 \: C2 K( M" i# D (3) repeat
# e1 [( G5 k1 N; U- ?" m7 e/ v$ Y <statement sequence1>;
5 o. q$ ?' F8 P until <condition>;
7 j! d, T7 s- _6 ~0 y& \; u" a (4) for <condition> to <condition> loop% V4 r( y" g# e: |9 \' K3 R
<statement sequence1>;
7 S7 x4 C2 z9 Y g6 I next;/ V5 @6 u1 Q1 Q" ~6 j
3中断语句4 |7 m4 p* y% u2 |# s& m7 h
waituntil <condition> prio <integer expression>;
6 m3 B& h" k; G8 u1 s/ y* F6 ]% O+ T0 T( u9 n3 Y0 W4 R, s2 P
0 c3 A+ H& ?3 [ ]( M; x3 P以上为常用的函数!7 e8 U& z1 v( g5 |% |' A1 W
还有很多,如有需要我把资料发到你邮箱里 ) Q4 k" ]( U" C
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