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发表于 2012-11-13 08:48:12
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1判断语句: E: C+ K, i( _7 d9 Q" Y
if <condition> then S' Y/ z" X |9 B: R( f' t
<statement sequence1>;) L4 K4 v% {7 |
elseif <condition> then# ~8 P' B3 {6 ?; v1 R& `
<statement sequence2>;0 v, o/ i% A# \& i
else 7 b; k; |3 \$ j% _
<statement sequence3>;
% t) b+ o' p" e6 E8 P0 J end;
9 ^( r1 v7 ]- T! A如果分支比较多,用:* g4 H$ \! U' B1 j. F, G
inspect <expression>
; j) T. D# l* f4 S7 m/ H3 g when <constant_list> then$ l( d7 N6 i% L1 z+ m( h
<statement sequence1>;
' k$ g4 [# W/ u; Z% {, } when <constant_list> then3 N: h; z& V! S. C
<statement sequence2>;1 y0 v4 n- a; a; `
.../ m1 I. _6 r) v; r; m6 E. b
else/ A2 L: q6 ?- k: ?' x& t
<statement sequence3>;
( I3 D" S# O8 v6 Iend;
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' I& d$ d! D& c6 _0 l2循环语句) e: J' O# C/ H0 A7 J* K
(1) from <statement sequence1>
* \" C1 _* e ^7 e! Z* I until <condition> loop
8 C# Y0 o2 d1 T <statement sequence2>;
" Y1 f* |2 {' n9 g! s; \ end;
, _0 V3 _+ y: X% [- H9 @ (2) while <condition> loop3 O4 k3 p# t. R
<statement sequence1>;
' t0 l# Z' x4 s6 A end;
6 T" G* B# B' g/ f* u1 {1 {6 { (3) repeat 5 N I& I% } W$ p/ L
<statement sequence1>;
9 t" y' J0 Y7 H4 l2 `% |6 @. K until <condition>;% U& U( p* i/ P* D
(4) for <condition> to <condition> loop
* K/ w0 Z. X; s# C <statement sequence1>;, t+ Y c# [$ O, B/ |
next;
2 q6 A& T- H; R* X, W/ @! o, @3中断语句
/ ~& e6 P" h& U9 Z1 L; m$ v2 z waituntil <condition> prio <integer expression>;3 B$ n! g! ^5 A8 ^0 k: ]6 d% A
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以上为常用的函数!0 b, T; F( R" W5 ]3 T% [/ J
还有很多,如有需要我把资料发到你邮箱里 - ? |4 i. t1 v8 u& E
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