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发表于 2012-11-13 08:48:12
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1判断语句3 P% c9 u' v$ `
if <condition> then9 b% x2 j2 Y. r# C, p2 m
<statement sequence1>;3 u X" x7 m+ B
elseif <condition> then
- d4 ?. D! ~1 {- S0 a1 e2 p6 i* L <statement sequence2>;/ X4 K: t- Z+ v( x }; S
else ! O5 e2 r5 H ?1 i& T, i& u
<statement sequence3>;
2 W6 |& X$ J' ?& v end;
9 B8 V, t$ t1 k, E8 j, Y如果分支比较多，用：' P- d2 h/ K. i
inspect <expression>! j- q0 b: z- Q8 o3 N& }
when <constant_list> then3 \) @- b! p2 f+ ]
<statement sequence1>;
; O' l+ m @; t9 X6 j when <constant_list> then
( f$ ~- `% p+ v7 C <statement sequence2>;
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else
1 g" w4 l& _8 H8 ` <statement sequence3>;
9 E- T+ r/ y" M' k5 ]end;6 k. c6 E( b- D7 F9 t" o. j
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2循环语句
; { J* g, t& g' \* ? C+ E (1) from <statement sequence1>
- R& Y6 `- P! X* ~ until <condition> loop
( ~# U/ C7 N* N* {# u8 M <statement sequence2>;
% R! P: n' u8 k/ @9 E& V3 B end;" ? I3 Y9 `' l% A# q& A7 p2 S
(2) while <condition> loop
6 {6 T$ f; p& I' X$ s+ {6 ? <statement sequence1>;1 R" q$ V! @; S5 g$ ^
end;
1 x1 a1 m, J, u (3) repeat & X! ^0 Z5 l/ b1 p
<statement sequence1>;
6 }# k1 K; g7 r+ `3 |" B9 X- J# O until <condition>;/ S8 L7 N% o$ D" ^. I( R/ u9 E
(4) for <condition> to <condition> loop
8 W+ P1 A. k2 t Q. m7 W <statement sequence1>;) R! x: e, ]9 H* _4 r
next;# f" h8 `' ]3 O+ m2 ?- ~" E% x! w
3中断语句
5 q/ g$ R }1 W2 p- b waituntil <condition> prio <integer expression>;3 Y4 x2 N0 [: Q8 ^4 U7 _. ^
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& H9 e8 d/ Z+ @以上为常用的函数！1 G; H) t; u: H3 t: @
还有很多，如有需要我把资料发到你邮箱里
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