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发表于 2012-11-13 08:48:12
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1判断语句
# C3 {5 N1 N& T- ]6 B if <condition> then4 l& l6 n, R' x2 r% K
<statement sequence1>;/ x; q" L$ r0 P4 B4 p6 y$ r
elseif <condition> then
! s; O; Q) c' m" ~$ ]8 |$ w i <statement sequence2>;: V# U3 @/ [0 m, B# C
else
1 m( b& S- O ?' @6 h <statement sequence3>;
! A: ]7 Y" c7 y9 A! s end;
. x' g p9 w- c7 q6 I* Z如果分支比较多，用：
4 j; P& E! I" i U& {1 d( c Q6 I inspect <expression>
3 L/ q5 E) f) C) u: T' q when <constant_list> then4 f O8 m' d$ Q6 R) \# z
<statement sequence1>;
& r+ Y8 x: i: d5 D, j when <constant_list> then/ m0 p! q/ J& q6 F4 P( Y
<statement sequence2>;7 M0 ~2 m. @7 p {+ D. S2 L3 w
...
! m- S% @9 e- v5 V else/ x% g) {, c3 n
<statement sequence3>;9 \. |6 o, U% U/ C5 ]( s4 y. |
end;
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2循环语句
R' G* y' z/ F% @. L# ?" C& s (1) from <statement sequence1>
' E1 ]/ t# o ]' l. v1 u9 T until <condition> loop% q. m. Z' W" g
<statement sequence2>;
& {& Z) U! q, V0 ^' D1 F5 x& R end;8 |5 l8 T1 Y9 l6 O0 Z* f
(2) while <condition> loop
- q n- Y( W! }% w9 p <statement sequence1>;
$ X; I( V, j/ I$ w1 X$ T# c4 p+ C: E0 F end;+ K" h- J! g) T9 j9 m
(3) repeat
9 Q1 C* r* R2 @. ^+ @7 { <statement sequence1>;
% B8 u# O$ N+ K7 H+ [4 b* ~% \ until <condition>;
! J% e( t" w; x' [: A: F) g4 k (4) for <condition> to <condition> loop" z: T9 j# ~$ |4 ?! A/ I0 X O
<statement sequence1>;- e1 V4 a4 n7 L0 I9 ]1 M
next;; O: C* `) s; q
3中断语句
' p5 t9 R% k. v; {3 B0 l waituntil <condition> prio <integer expression>;! A& O' X* B- L+ M- w* a& O; v
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以上为常用的函数！
0 e$ c U8 j' |4 ?: e! a$ k# C2 K- y还有很多，如有需要我把资料发到你邮箱里 , V6 N, [5 z) x7 X% Z0 ^
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