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发表于 2012-11-13 08:48:12
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1判断语句
/ [/ f' C: M+ w- K+ C if <condition> then+ w+ R# C0 A" o
<statement sequence1>;! S: D4 R) p. E ^6 h
elseif <condition> then
2 R$ P# g/ `) P9 p6 \" C% O <statement sequence2>;
5 i Q% r8 n- }3 {9 S else a$ V, @, J$ x: K* [
<statement sequence3>;9 A1 [8 |, t: t" O# x
end;
! H; Z. U: R- u如果分支比较多,用:5 g8 \1 g$ R0 C' x2 V: `' `
inspect <expression>( C7 \/ N; _, c2 ~0 F' M
when <constant_list> then- ^! v/ ~: y5 G1 O% ]2 p |5 W4 p5 e9 d
<statement sequence1>;
4 x2 s i) P1 c% @( M) A when <constant_list> then: d# V( N9 T: U$ W/ e
<statement sequence2>;& a1 W0 i" h/ s! j. F7 C# A
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else
) n! w9 U# I1 Y9 Y2 Y <statement sequence3>;
: n6 A2 \9 s8 O7 A1 w* U) Tend;& x% `" J3 I1 {2 Q1 h
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2循环语句7 P! e6 z, t; X, L2 i ]7 o4 S4 H
(1) from <statement sequence1>
, k& l3 _$ r5 z8 d& Q2 W, k until <condition> loop
1 T3 Q* \7 L" t' x" | <statement sequence2>;$ r3 d* b* Z: x8 J0 ?1 G, ?
end;6 ]8 m2 q( [8 O1 F+ Z2 `; q
(2) while <condition> loop# o2 O) k- g+ b2 `% w
<statement sequence1>;. ?1 m8 S% G# {# m& T' T; n' [2 ?
end;7 e* S; b& `$ R) F
(3) repeat
$ p7 r. U8 T+ n. g% z* g <statement sequence1>;
, ?( Z/ P0 C2 x/ A until <condition>;
* Y! V" Y7 A# d& |6 p (4) for <condition> to <condition> loop
4 ^6 R- l0 U" f6 w9 | <statement sequence1>;: y" r7 d; [8 G5 Q
next;
2 X" U9 o2 [3 x8 r& P y& L5 l/ @- b3中断语句
0 V5 L! Q* E5 v. J1 g+ E0 B* U0 R waituntil <condition> prio <integer expression>;
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以上为常用的函数! ~) b, {+ y, x% D7 B5 d, y+ S
还有很多,如有需要我把资料发到你邮箱里
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