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发表于 2012-11-13 08:48:12
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1判断语句/ j* {! J1 s# b6 \( K
if <condition> then
) h. B8 w# W3 e% q/ d <statement sequence1>;
) P& N9 F5 A1 I( y elseif <condition> then
& @) R6 k: W3 b/ k <statement sequence2>;4 f* l5 m# D3 `4 t( r
else 9 R) E6 z" x% c+ E" r4 B
<statement sequence3>;
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如果分支比较多，用：
, X6 }# r/ I4 E' |8 V: O9 g inspect <expression>0 i, _. \% s% l
when <constant_list> then' D0 e/ m1 L5 D; y8 Z% c7 N
<statement sequence1>;
, S8 K: B7 j) G8 H when <constant_list> then
) R, p- U: P* R1 Q& Q& V3 Z <statement sequence2>;
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else
; z) @0 \ ]$ V9 w& k, @ <statement sequence3>;2 G p% C3 P* ]7 x
end;
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2循环语句
) N- W9 C; r" T. I( Y) [ (1) from <statement sequence1>
) d; w5 a8 B' V7 p Z- [7 I until <condition> loop6 m* U( L9 i/ r8 d
<statement sequence2>;2 q- x8 {' M0 }# B1 M
end;; V3 v( h4 A& f2 D3 f
(2) while <condition> loop
. @5 o+ e8 l: [0 Q$ v: ~4 W& A <statement sequence1>;
/ G, J' L7 M6 Z3 k4 J/ W end;
! y: Z, X; A2 W( L0 D2 w2 ~* s; u (3) repeat / K4 K3 f6 U: \0 J( b
<statement sequence1>;8 c. y2 f" r) w8 V
until <condition>;
, c2 z( W; G0 ~+ w (4) for <condition> to <condition> loop& w+ B% m. a9 c e$ Q1 E0 X
<statement sequence1>;' d0 N% W# _/ Y. V0 k2 x& c0 A; s
next;
2 q/ ~3 w5 h S _3中断语句* E" x f6 N& o3 S1 j. l
waituntil <condition> prio <integer expression>;
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8 N/ h6 u$ M7 D, @8 O8 T: n以上为常用的函数！: ~7 \0 ?) {2 e7 }
还有很多，如有需要我把资料发到你邮箱里 3 }4 s2 M8 ?/ d( D, `' T
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