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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
; A, p, C& p! F- y* C if <condition> then6 U/ {7 q" U% W, |" L
<statement sequence1>;$ H+ t; ^* |% i ]- J# [8 W
elseif <condition> then
$ N1 ^7 f4 k, q' C$ _4 K3 ?- u <statement sequence2>;
( W) j8 n, V6 L7 _ else 1 _2 u9 C2 n2 M( v, Q/ @+ T
<statement sequence3>;
1 l. |, U/ B6 e0 u. d2 v# e6 R end;
; i [/ U$ _! f1 t4 i' ^) l如果分支比较多，用：& `$ r: S, @& J) b) w( B
inspect <expression>7 O6 j a) W. U: |! ^7 ?9 {
when <constant_list> then# C, D/ B9 ?, x4 G
<statement sequence1>;' e8 }1 d8 m" S9 u/ X
when <constant_list> then6 x6 v: l, P7 _
<statement sequence2>;
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else5 o: V( `& J& N3 b' `+ i
<statement sequence3>;
% j9 h4 C6 s0 }9 t* ]& ^+ }: Cend;
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2循环语句
n; V$ _. V# v (1) from <statement sequence1>
1 G5 ?: Y; V$ z9 B. Y: a# r until <condition> loop
9 U0 H7 r( W8 H, ~ <statement sequence2>;
5 C8 Y$ D4 r' K6 t8 n+ n5 P6 e y end;
! m: k* ?! [' o o/ L# Q, r- W (2) while <condition> loop
/ }% p' U2 h( A6 R, Z <statement sequence1>;$ ]. r/ `- f- r/ Z6 }6 _
end;; N) ?+ Q9 S9 p# ~! ~( V# o
(3) repeat
& H) L, l, Z1 P9 t <statement sequence1>;" U1 v, X' ~0 C/ B* Z4 W
until <condition>;
& }0 F4 l; C3 @8 [: Q. ^+ o (4) for <condition> to <condition> loop
2 B8 F6 ]* v1 ?* ^ <statement sequence1>;7 b2 `, v! X5 H6 b. y7 {& c! ]
next;
2 P, h; K+ G) B+ ]4 P3中断语句
! O: V0 s- `; n M waituntil <condition> prio <integer expression>;
' g8 H7 V3 C' u0 \: O y+ H% F) c& q: U, F* n
7 v: e B' Z+ H0 u
以上为常用的函数！
: ?/ U1 u' B' U还有很多，如有需要我把资料发到你邮箱里 4 s$ ?) H1 R" h2 Q5 o7 t$ r
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