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发表于 2012-11-13 08:48:12
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1判断语句
0 p; Y3 i- x4 m Z; |0 H if <condition> then5 ` W" z" z) u- Z5 `
<statement sequence1>;; U, Q9 o3 P1 j7 l1 L- ~
elseif <condition> then
3 ]: u' {" Y9 b% g, H I$ L1 R <statement sequence2>;
5 Z, j9 U1 s- r* H else
$ S; x1 K3 A! T, n2 A3 s9 G! [ <statement sequence3>;
1 i9 r- l& d1 C2 ?/ y% G% ~) Y9 l end;# Y* A, F! x8 `; {: M3 n* z
如果分支比较多，用：
6 e: g1 ^% T! S" Q' \ inspect <expression>
% k. ]" Z, I5 w" q when <constant_list> then5 J6 P* m9 G# d4 ^
<statement sequence1>;3 r3 |) T; d4 N) l. d& q
when <constant_list> then7 h: s$ J v- y* K' R% o1 t( c2 }
<statement sequence2>;( W# K7 R7 r9 }- j5 e
...
c) q" L; ~& I: ?/ n4 K! O else4 t' }8 T& i9 n) B/ H2 a
<statement sequence3>;
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7 m& r# Y* S' D* z: T( i5 T2循环语句
5 A) `" w0 _' g o9 m2 |2 J2 @: ] (1) from <statement sequence1>
7 G( R1 v9 T& m! F1 A1 ~1 X( l* F until <condition> loop
' A8 }3 e- O( N. @" @/ v <statement sequence2>;
3 a7 u4 W1 o7 Y end;
! ~" b% j& M4 N/ [ (2) while <condition> loop6 o# O& w$ m! {. W
<statement sequence1>;5 C1 v3 @ x0 ?8 ~' d& d
end;$ k/ _( ?( u% {; p, B$ B( B
(3) repeat
, `+ j* ?+ \2 [6 a% l <statement sequence1>; o- H& F0 M8 N0 S
until <condition>;
% M* k8 S1 \+ l# M; m: @; z (4) for <condition> to <condition> loop
S$ d' W D5 W1 ^' u) B. h <statement sequence1>;
0 y9 X& v9 I/ x8 I# G$ i: H0 U V7 K2 B next;
5 a6 F2 O! ]* E9 N9 _3中断语句
, l: r5 ?- T& A! c) K% l) F( [ waituntil <condition> prio <integer expression>;. Q! |/ o4 r4 q ^; F( S
% x% q3 X6 u0 X9 ]4 g( |% D- W
' V8 S% C& E" Z P以上为常用的函数！" o1 y; d. q. Q5 h3 G3 o6 y
还有很多，如有需要我把资料发到你邮箱里 0 l+ Z; L6 [" H+ W9 i1 `: c7 J
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