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发表于 2012-11-13 08:48:12
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1判断语句
6 @" I6 Q7 W$ e" M0 X \ if <condition> then
6 ~' q4 j! ?$ E. ]# H <statement sequence1>;! Q, |' |, R* E7 [' I7 }/ M- c) v
elseif <condition> then! q& d$ S5 N3 E! X; L
<statement sequence2>;$ N% n3 m4 r/ l i/ z% A7 j* c
else 9 x. |% e5 Z; q7 z$ [
<statement sequence3>;
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如果分支比较多，用：
$ u h- w& B9 Z1 ^2 Z0 \" B2 ~ inspect <expression>
8 f' y" _ v/ `/ P! Y7 n5 o when <constant_list> then6 k( X% ]7 b7 D
<statement sequence1>;4 }: Z/ H1 T0 B) ^% r
when <constant_list> then
; J- @" H8 {! Z. D, B <statement sequence2>;
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else# A/ _6 i8 c4 U1 |
<statement sequence3>;; v: z* Y) R/ K+ A/ U" m2 ]
end;1 c% q' W m7 b$ }2 B
. L5 a- P* Y1 Y `# q* x% Q2循环语句2 q# P2 }& O. [# o2 t, W
(1) from <statement sequence1>( P7 {" _3 z0 C1 ]5 g* E% x
until <condition> loop
; s9 N! u5 d: ]6 R% S' r1 m <statement sequence2>;
( v% F# N4 q) r f9 i6 j end;
/ I' y' ~0 O6 J8 }9 f (2) while <condition> loop
! o% s( Q0 A F8 I1 v% L9 ?9 K) b <statement sequence1>;
/ a# c4 Q: J0 X4 n: {0 p& c% z end;' O2 Z# p' V; a+ g! ? D" ~! X
(3) repeat
: R" F- R, I" D8 t' W- u0 i <statement sequence1>;+ z; c" U! X$ d
until <condition>;
- F5 q/ G" l6 u8 P z1 w6 ^7 D (4) for <condition> to <condition> loop
/ L7 T1 R" G) k3 G7 d <statement sequence1>;
( v. ?- h) w2 `# H. W) U% ~ next;8 M8 Z F) i) m1 P
3中断语句
; c& e( t1 o1 }* [9 D waituntil <condition> prio <integer expression>;( Y* X Z6 V# t. R3 M! K( b
$ b) Y& l* h0 A0 {; e/ K0 A
" V- k1 ~( A: J" Q! K, e, @- h以上为常用的函数！
" X: T, K. W7 @% L, B8 a; h4 r还有很多，如有需要我把资料发到你邮箱里 , }: q5 q. p7 p8 }
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