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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
4 I' g2 W2 x0 o6 A if <condition> then8 B- z( u3 q3 v- V
<statement sequence1>;7 Z" d2 r# _8 Q; _1 ~
elseif <condition> then
! |" N; m" b" M! U <statement sequence2>;" d4 Y8 N! H, R2 {% i
else
' p& M* _( ~- v' c4 l! q <statement sequence3>;( P, f6 L8 @2 h `+ \
end;4 q3 \/ I* ~) p3 w
如果分支比较多，用：- {6 C' z% Z$ S! O
inspect <expression>
6 x" [6 t8 M" q when <constant_list> then* v; t5 j3 R5 s& c$ E9 J
<statement sequence1>;3 {+ O* q2 i8 x8 j: d
when <constant_list> then( n2 U! N# b7 [9 {; Y
<statement sequence2>;, F2 u T7 O8 a+ J( J- ^
...
4 Y9 D" d& c9 x) j8 L L else
8 e2 ^! W. o0 F3 L, V <statement sequence3>;4 h1 g% [. r4 _4 D* ~0 j
end;
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2循环语句* W5 D( }, p& n
(1) from <statement sequence1>
! D3 v1 x! ` e$ l4 y, M X until <condition> loop( _" C4 [1 W) |0 y' W
<statement sequence2>;4 r! N) I9 I5 U2 V
end;
% T+ D, ~' a0 [' O! \0 j (2) while <condition> loop
/ k; @6 [5 k: P9 e- a4 l <statement sequence1>;
4 c# I5 N! R. a1 ^1 R end;' d9 [; l' F; [5 t7 G
(3) repeat
6 d( Y% m" f1 m) [' G4 a <statement sequence1>;
8 u! x% g3 ^0 k/ N" c$ ]! j until <condition>;
% s% ^0 ]9 v+ p6 S (4) for <condition> to <condition> loop
6 }( Q- C& q8 u <statement sequence1>;
3 \- j6 q! j0 j5 x6 j. Y7 l$ R next;; U: s0 i- e' J& P, A5 A: Z; |) z4 L
3中断语句
8 R1 J* Y7 n( B' ?0 U6 k waituntil <condition> prio <integer expression>;# ^; d( M; ~: V" q0 x. c% N
8 I# U1 h2 q$ W2 X
# s' j5 p2 e; D& y- @. X以上为常用的函数！& `! c, ]- t- f) N
还有很多，如有需要我把资料发到你邮箱里
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