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发表于 2012-11-13 08:48:12
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1判断语句
5 U# l6 ~/ a3 z6 [- n if <condition> then
: X: ]1 x# K; t+ C9 H- q6 _ <statement sequence1>;+ u6 g& K7 p: w6 R! e1 u
elseif <condition> then
% n3 C; l" ]) s5 e' x+ O <statement sequence2>;9 }7 K4 g# c' |8 Y0 t
else
. [9 O: G! h2 f I& z) w5 D: j <statement sequence3>;/ u X1 Z9 [- d+ D4 M4 M, G/ l7 A
end;
$ A6 v7 M5 v* _8 n3 } D如果分支比较多，用：5 \6 J& F5 M# c8 \( {* x
inspect <expression>
7 D1 u! g$ m& U$ }% r. B when <constant_list> then
' {8 g& [2 ]8 a, A$ O <statement sequence1>;
0 S5 |, j3 i: H: o- G3 C when <constant_list> then: Z9 h* y7 q% o' `8 l4 C' y
<statement sequence2>;
& Q' a/ y6 v; c. ?; M ...
* T, f: \4 U& w6 ~* m6 m$ l else
# k& J/ R6 T H <statement sequence3>;
1 ]& m+ }, Q1 E# `( `end;! |& @! U, J! x
( T7 W) I! y( t( M6 i* t2循环语句
; G; D6 D* c: P4 D% q# _: q" } (1) from <statement sequence1>
' X6 O; n: j5 \3 X# z+ \. y8 c until <condition> loop
, w2 q# N( D# a1 O <statement sequence2>;
, n# |3 a9 w- C' w* M end;2 p( c4 ^3 ]; N7 x$ O1 S P
(2) while <condition> loop
% F1 D0 D" ^# w3 z( T <statement sequence1>;
$ R3 ]0 S" h- I8 |9 e* T7 K end;
# e5 T2 t, T( E8 H( C* b (3) repeat ( i9 R; N* n. S
<statement sequence1>;
' _6 v. M, t+ A, p) j/ F4 ~& L( W+ ^ until <condition>;
0 @4 x# _; c7 s7 Z( {' P6 _* e (4) for <condition> to <condition> loop# ~6 N8 V6 X- o) m6 E- t* @
<statement sequence1>;
* X0 H& Z1 m+ Y( Z5 i- y9 F next;
8 Y5 X! m' ~) G3 O% R. D6 f3中断语句
/ o( r: V& [ x- I9 n8 R4 L. e waituntil <condition> prio <integer expression>;/ a7 \+ L* y1 O! q9 @6 d4 ?' m
, E. f: K x' A+ M. L: N* \8 p" n. S
$ e. w" `" `# v4 F/ J( d$ i" R% W以上为常用的函数！) ]) R" U0 h$ U
还有很多，如有需要我把资料发到你邮箱里 & T6 p4 k* ~ A, N- X
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