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发表于 2012-11-13 08:48:12
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1判断语句8 S0 D' D/ ~+ I/ L# p$ e( v) r
if <condition> then
' E/ @' _2 Z5 l7 W9 p* }7 K5 u <statement sequence1>;; ]" w1 i& s) J6 L8 \ j2 v+ h- k
elseif <condition> then
1 e$ [" I; a0 w% F. l <statement sequence2>;
) @- S4 W. G7 e else \- s) Z5 h+ @% W) t& i0 \. p/ f7 G
<statement sequence3>;
; }! |, n( e2 d6 R) [/ J end;
4 n" z, u% d3 q D0 |$ W; h如果分支比较多，用：+ n# X2 O1 N- A' Z3 M+ |" k
inspect <expression>
% N1 y0 C/ f( \. \! m% J4 r7 [ when <constant_list> then
0 B* H1 l6 S8 m8 Y <statement sequence1>;
; P, d7 _: R( K% I& f when <constant_list> then
c; t' M& s) f, ]: `" J5 R <statement sequence2>;
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else9 O# d4 G' {- X& T# c6 X; G
<statement sequence3>;7 N9 U" c! G1 D9 i9 N
end;
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& X4 M* L) C% [$ S; t/ @2 q2循环语句, ^- |0 h, f# M P6 v' `
(1) from <statement sequence1>5 v8 P$ F: m9 Q: A6 w- v% ~
until <condition> loop
% \ h4 p5 X# m0 v6 w! E2 y <statement sequence2>;
& E. z+ n) J$ A+ A end;
6 |/ o' w& v7 F1 l7 l1 a( _, l$ a" i (2) while <condition> loop' J- v( h& z$ X$ U* ~2 p
<statement sequence1>;9 d. Z) @, m. W; D: t2 p7 d% u, ]# C
end;
A Z- A1 |! R3 y4 L7 Q (3) repeat
0 S1 Q" l! C9 d2 j1 b$ `1 N; Y+ g* M <statement sequence1>;
7 V* x; d3 Y: u2 X9 h until <condition>;' H( n3 Q. A' Y9 \5 X2 N
(4) for <condition> to <condition> loop
, x* V; c9 w6 `) E! U2 W. J' _2 L <statement sequence1>;
, @' m3 i/ P2 x% x' B% r next;2 f4 y/ D) \- f0 ^5 d6 c
3中断语句
0 J: {$ V o7 W" z/ ^+ j: M waituntil <condition> prio <integer expression>;" q- R4 [8 H) A4 f* A
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& l# p- {" R, S/ ~8 O3 N以上为常用的函数！' J1 e: m, l- O
还有很多，如有需要我把资料发到你邮箱里 1 Z( V9 c" f7 b6 P0 Z% ^
2 Z& I3 {* Q/ {8 ?
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