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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
! \' b9 P; }* n5 C+ O if <condition> then6 }* C* @. K S
<statement sequence1>;. n# j( f4 F3 ]' K
elseif <condition> then1 W. r4 K. W, p
<statement sequence2>;
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<statement sequence3>;; p; Z% ~$ |+ w9 N( V
end;
- h& Z* w2 ~: b- R" s如果分支比较多,用:
9 \$ K4 n% P" U4 l4 X) T inspect <expression>
1 v! d; I6 t; E2 K0 R when <constant_list> then/ `- U; p( g( Y$ @
<statement sequence1>;
4 k$ h2 e W6 `- b' s+ k! H5 w when <constant_list> then+ I/ `8 E- K% v7 x) d
<statement sequence2>;
$ V0 P. t7 E+ v' s3 f/ q ...
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<statement sequence3>;5 @+ P7 m: L" Q7 z* A) ~
end;
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2循环语句
" c3 ?7 f; ~+ o6 V (1) from <statement sequence1># j- A, } j: {7 l' M& o$ n4 c
until <condition> loop/ {$ g( L* P8 D
<statement sequence2>;1 {9 E8 A. f9 U9 ^% z# i, D+ x
end;; ]9 P+ i: G' G
(2) while <condition> loop0 S8 e# ]/ u2 ~8 R, Y5 K
<statement sequence1>;; l) j/ L V4 q
end;
; u: A: o: S0 I (3) repeat
# \. Z* A; i- i/ I. {3 _( o! D <statement sequence1>;
7 j) \* L; A r until <condition>;: I9 y" W# C# h) C
(4) for <condition> to <condition> loop n3 n; }, s8 S: x
<statement sequence1>;
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3中断语句/ _3 j% t- I1 V
waituntil <condition> prio <integer expression>;
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3 F: H* B/ c' z, ^' P5 M* L以上为常用的函数!$ [2 Y& B% d8 o7 x& I" Y$ R5 L; ~
还有很多,如有需要我把资料发到你邮箱里 / k6 G6 l# Q: x# e5 I
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