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发表于 2012-11-13 08:48:12
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1判断语句
, }' p+ h" }4 P- o j5 `5 D, s if <condition> then( W& f: B3 N$ f
<statement sequence1>;$ p& N2 y+ Q, [0 ~2 @+ ^1 p
elseif <condition> then3 k; B; m4 p; k+ [3 w8 E
<statement sequence2>;. t. w4 s4 Y$ T+ U
else
3 T: d6 S4 [# x <statement sequence3>;
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如果分支比较多，用：; k$ [- n3 a# A
inspect <expression>- ~& {: J0 R+ W: ~! e. A2 F
when <constant_list> then5 ]( L9 j! g" z( N) Z
<statement sequence1>;9 Q; [6 N3 L6 {) B" |6 B1 v- a! u
when <constant_list> then b% V5 q& k! r' f% \( p; Y6 A
<statement sequence2>;
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) G- E8 n' O- b4 V- T( O else
/ Y4 g3 i! \0 | <statement sequence3>;8 @( i8 f$ ?9 F7 {% e! Y. M7 q
end;
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7 F' X; g I7 l) X8 f2循环语句 ^' P o$ S) H+ {2 L& g
(1) from <statement sequence1>
, E, o, A# S0 U \4 { until <condition> loop3 e( K5 H) Y- F) x" H3 s
<statement sequence2>;7 T& z6 o+ p7 i" L9 N- I+ G5 b
end;
. M; ]' I) H" S: B* G9 m+ Y; f (2) while <condition> loop7 }7 r& }, `( i( `
<statement sequence1>;. E* {; F1 J* L- b+ h. M
end;0 ]4 d! m$ Q) {2 `" ] ?
(3) repeat
; R0 U' o; X" h/ B& U4 x' d <statement sequence1>;- H9 M# O2 j0 x7 ~2 c0 Q
until <condition>;
: p6 _4 N1 s6 o& H( F) \* q0 r (4) for <condition> to <condition> loop; H8 g i( u+ g/ Z+ ~4 W
<statement sequence1>;
- K6 a# Y; Q- |8 M; M f! e next;
. }! {" f$ Z4 d2 q" J+ s4 @3中断语句" u0 {0 I/ Y% e V K7 U+ b
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
6 m1 K% ^( k" O" @; t S! L还有很多，如有需要我把资料发到你邮箱里 - ^) s" Q- c7 C7 e7 b) _, p
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