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发表于 2012-11-13 08:48:12
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1判断语句$ A) d8 n2 f$ s6 e7 t# R9 p7 N
if <condition> then6 @7 T0 A0 L7 h! Q) \# N
<statement sequence1>;
* c1 @4 R- y& h+ @! | elseif <condition> then
8 t& j6 S* I& T# j- o <statement sequence2>;
* K) z8 |7 V# ?3 v else
+ g' J0 _: M/ S% K' T9 l" q <statement sequence3>;; ^/ ~* i) n1 c7 R) w
end;# { T; n/ H' B" e
如果分支比较多，用：
/ k/ r7 P" H x4 R0 U inspect <expression>$ M! z- n* |6 S) h5 B' A" v: {
when <constant_list> then7 ]5 o! O+ i- H( A, r6 {1 |
<statement sequence1>;: \5 [# u! I8 N* W
when <constant_list> then. m5 ?; Q& w7 A9 a7 `3 K
<statement sequence2>;
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else
; l1 U) h* k' F. ~8 W1 ]6 x <statement sequence3>;
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2循环语句9 t" G6 \3 M1 H5 C% r
(1) from <statement sequence1>, q+ c& W4 Y% v e% a
until <condition> loop& L7 M. I" a$ n) H# l6 k
<statement sequence2>;
' G2 h$ w8 f4 S& S* { end;0 f" e6 r* q! O8 Q3 Y) ~
(2) while <condition> loop
% w0 k, ~3 F9 B: F- E; r) \2 @ <statement sequence1>;
3 U1 V- v# _* ^. G: o5 g* J- k! h end;: n2 d- c6 Q, p. W9 v0 r" T6 O
(3) repeat ' {/ O: l# @! b
<statement sequence1>; f: M. R5 h7 A/ J+ a
until <condition>;
$ t, ]/ M% F( ]: ?: ]- N( f1 ` (4) for <condition> to <condition> loop" [4 y) j! q& x8 ` R
<statement sequence1>;
* v; i) v( H N% h+ | T2 X next;4 J% E- G8 w! o; c- M
3中断语句
$ Z: @+ X/ W; R. c" L waituntil <condition> prio <integer expression>;
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* X: {, B F7 h1 m3 b以上为常用的函数！% ?5 H8 F6 E, \0 O |; F
还有很多，如有需要我把资料发到你邮箱里
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