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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" L- T, l; \; E1 f7 m if <condition> then/ L, a- p* m1 c
<statement sequence1>;
% t* X! p/ K( L/ G/ N elseif <condition> then
+ W; H3 j, ^: @0 P% y; z8 A; w- Z6 _ <statement sequence2>;- A% q+ U2 j# s6 l% Q- s; d
else
' Y$ Q5 O. D, M: Z. s7 z3 d <statement sequence3>;
1 n2 d; C$ n5 ^1 \! @7 H# @ end;
* k% \! h0 j$ e! g4 {7 e. N7 p如果分支比较多，用：+ I8 [ n' ]0 C! A6 G1 q1 z
inspect <expression>3 s+ s' B. b1 {- w; k) R( u
when <constant_list> then# E% y3 e: a. G% X, z$ C' v2 m
<statement sequence1>;0 p- Q* o% B" _1 m
when <constant_list> then
( k( ]: U I3 ^" L+ o- G <statement sequence2>;
$ F: R0 Z. f. c ...
& n w% @ t% n9 H+ Y7 b$ ] else
+ U# A( c/ T6 n# B2 c <statement sequence3>;/ K; [: h [' l: E; V
end;
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2循环语句
. N$ d- _; O8 { S (1) from <statement sequence1>( Y! E8 ~9 A X1 O$ u; C
until <condition> loop
% T: m! C: F1 c+ x* V; D0 i <statement sequence2>;& I8 R, y. }8 H0 u" g% n' j1 m
end;
3 d3 x0 n" T8 H, d/ u% r7 B; |0 w: | (2) while <condition> loop
" E/ C7 l- P9 p+ e <statement sequence1>;7 Z) m$ z& ]% Y+ p# h7 i
end;
" H# q! V2 B' f8 A (3) repeat
8 c* \3 Q0 A& B <statement sequence1>;7 |$ m& D$ i0 n& y
until <condition>;
6 L7 W: _0 s! [: ^' I& ]: u (4) for <condition> to <condition> loop
3 u8 _% k0 a# \+ f, p% O7 @* s <statement sequence1>;; k" f: y8 @* L1 ^$ r; Z
next;& h+ T& {6 k. G8 i e. Q
3中断语句
% Z. k( k B! L2 K waituntil <condition> prio <integer expression>;
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以上为常用的函数！
3 ~$ v* B1 m2 ]: }: ~还有很多，如有需要我把资料发到你邮箱里 ; S- t% M3 H* ]' _% v
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