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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
$ N7 B( v+ Y& _5 A& T5 {5 ~ if <condition> then
* e2 y+ v( i! r. T <statement sequence1>;8 k1 g5 w k5 ]
elseif <condition> then
( {7 j9 V: D: Q( b <statement sequence2>;
5 \2 U! Z D6 r+ ` else
, ^( Y2 M# }* J3 p8 t1 ]& ]! e <statement sequence3>;
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如果分支比较多，用：6 a" p: m. E+ H
inspect <expression>- Q# z3 k5 n4 o2 B
when <constant_list> then8 W6 F# F& D9 a
<statement sequence1>;
) p; @* I# S" x when <constant_list> then
3 t# \9 A: q# U, t' Z! z4 A0 L0 @ <statement sequence2>;
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else: n, }. j1 R2 b$ d, v
<statement sequence3>;" ~2 G( [# g7 E
end;- P/ h3 M% ]4 c9 z
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2循环语句
) i2 M) T+ A+ q& Q7 C (1) from <statement sequence1>- D* f8 P( B) I! D% K/ S* @: t
until <condition> loop
4 B' ~. J9 R/ ]* e2 p- a1 J <statement sequence2>;4 S4 K& Y" O9 p3 L
end;
! w* I9 r( J) a5 \6 ~! x$ U; s (2) while <condition> loop) p+ h! D8 }6 O0 ?2 r7 l
<statement sequence1>;. f/ `* d. j; J; Z) Z7 J
end;+ R% b! w- B+ i
(3) repeat " X2 s6 c9 `6 i5 U
<statement sequence1>;5 C, m! F9 P" Y3 h$ e6 C
until <condition>;7 j/ |7 f; N# p
(4) for <condition> to <condition> loop' a7 J& D% S" O. R/ Q
<statement sequence1>;6 k L4 l% x# l4 U ^( h
next;1 C# r% O x& m d
3中断语句$ J \' J6 i; ^8 x0 S' r( s$ K2 ]
waituntil <condition> prio <integer expression>;
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4 {* g0 i( M0 t) w以上为常用的函数！" _- H! R- p! z% T, t+ V( L" `2 S6 R
还有很多，如有需要我把资料发到你邮箱里 - x; L2 W% x- ^- j" Y6 p
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