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发表于 2012-11-13 08:48:12
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1判断语句
1 H4 F) }' T( i; Y- d Y J if <condition> then5 l2 Z. Z8 Q2 ]7 H2 {- G
<statement sequence1>;
/ e4 V2 ~: j9 g0 q+ C* z elseif <condition> then
& ] b# o/ O9 @ <statement sequence2>;
0 {; @ t" X, ?/ C9 D2 j. ] else
9 p g8 Q) [3 u0 W$ B <statement sequence3>;4 ?9 L& i9 G/ {1 h
end;2 q- {6 `0 `( O; W( U
如果分支比较多，用：: d$ Z8 ~- W' u8 H4 z2 Z8 U5 F
inspect <expression>8 j0 S0 O8 X( s4 J% Q
when <constant_list> then
7 h B6 M2 S4 @+ ] <statement sequence1>;
5 A. @; I% w( V& S: Y4 A when <constant_list> then
. i: N) X9 `0 q" ]3 }* F% S# u <statement sequence2>;
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else" @5 T3 E( C- P$ ~& |: O: |
<statement sequence3>;- A" t; y0 p/ W8 u* A1 a# V
end;
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' G& p, D/ E$ ^* T. A. ^" f5 g2循环语句
0 @2 X: T9 L% A' [# U# h+ Y (1) from <statement sequence1>- y4 v. i% L$ Y
until <condition> loop8 z/ ~( F, |8 \3 |4 n2 k" A
<statement sequence2>;
7 W0 [: B7 J% Q! L) d end;/ `& r* }1 Y& n$ j# k) R7 b
(2) while <condition> loop
. c8 K, s9 A. F4 f <statement sequence1>;8 L. s9 m( R. T+ U
end;
+ B& f% L3 y. g. H (3) repeat ( s4 ^2 K1 h% e4 M8 g
<statement sequence1>;5 F+ E: l6 c+ }$ ^6 i
until <condition>;# n$ |3 k6 f, n( G( {
(4) for <condition> to <condition> loop
' e6 }2 J1 B8 o+ z7 @$ O1 u2 F <statement sequence1>;
! P0 C* y: T: g M next;5 Y, n/ E5 d. ]) ~9 z4 r
3中断语句/ d/ j+ H' I; J0 a5 U' t
waituntil <condition> prio <integer expression>;
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+ f7 Z. R3 t5 Y- N以上为常用的函数！
7 [/ ]; e1 a+ m! ?9 e+ J还有很多，如有需要我把资料发到你邮箱里 4 ?9 P* O6 p( @( G# y8 r5 q& t
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