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发表于 2012-11-13 08:48:12
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1判断语句, V; k; Q8 r0 S8 L) t. F
if <condition> then+ d$ y) ~$ v, ]" _
<statement sequence1>;- T' J, J. F* R( O$ L8 Q& w: E g
elseif <condition> then
: [3 i8 X w% \6 w4 @6 d- L* u! }$ i <statement sequence2>;
; \7 @0 B8 r0 Y$ c9 s( P( x) y else
$ a! x) q6 F% R% H( T' v <statement sequence3>;: a5 u! X1 t9 ?( [( x
end; ?: G, F+ O$ G& \# K7 O
如果分支比较多，用：% j y+ G8 N/ O) k9 E( V
inspect <expression>- k7 K$ |$ R' P) Y+ \. z; P
when <constant_list> then
$ N5 c n# S4 U5 Z9 H <statement sequence1>;* x8 n. `5 e# y2 j: g$ R& x$ y' E
when <constant_list> then
& `0 ]$ d6 N& V5 K, p4 x$ ^ <statement sequence2>;% r; f$ y4 B+ y
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else
5 q( k. U6 b# W <statement sequence3>;
$ F! E, [9 b; T. P" ^end;
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2循环语句" ^5 k' V6 l/ ]4 _ x1 V# O
(1) from <statement sequence1> w3 V! f! @7 a
until <condition> loop: l7 n% |9 ?8 ^" d
<statement sequence2>;$ j% x7 X, S1 U$ b1 L/ L
end;
: z6 [1 ?8 M' ~9 m* P (2) while <condition> loop
7 y4 ]* M0 ^0 E: }/ Z% j' j& \+ i <statement sequence1>;
: O& t r. d0 H- l. d; [- ~ end;
' V: X v- x0 x B (3) repeat $ k7 w" a j$ z
<statement sequence1>;
% h( K: ~5 N/ ^& q* S' ` until <condition>;% |) f2 U4 A6 z. Y, N, c
(4) for <condition> to <condition> loop
3 P& Z, g5 Q. g; F& N, l; \, k <statement sequence1>;
4 s. n( S6 k9 n next;5 g: F( p. p+ e; M; u
3中断语句4 Z+ J& Q8 ]4 g2 n0 g
waituntil <condition> prio <integer expression>;: W+ Z0 V) S5 S9 u5 s
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; H3 r% a, |8 Q- r1 A, L/ c以上为常用的函数！8 L2 _) u0 B% ?% N$ A E0 v, ?1 W7 L$ Q/ I
还有很多，如有需要我把资料发到你邮箱里 ' I, W1 p. @, v) ]: m" ]0 B! q2 V
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