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发表于 2012-11-13 08:48:12
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1判断语句
K7 K0 I8 J( P9 [3 k6 ? if <condition> then
. [) B. K8 J. H" K3 R' O4 [0 S <statement sequence1>;. g6 Y" y9 H2 z4 l
elseif <condition> then! c8 M8 c8 e4 n/ ? }& V
<statement sequence2>;
3 _& P b8 h I* I! g" t. ], T else ' ^" g0 y0 d5 _
<statement sequence3>;7 ~( _7 M, k* X+ l( F" M( _9 r
end;
6 [; b$ ?" U/ |+ J# i/ ^如果分支比较多，用：! V; v6 i4 [: E, B* ]0 m
inspect <expression>
5 d. F, P1 m7 F. Z when <constant_list> then
" l3 w! I0 y8 O) p! |& Q <statement sequence1>;: K) }$ h h' }, V8 ?4 A
when <constant_list> then Z- w9 j& @9 d$ p0 O% i- _* |
<statement sequence2>;
% F! p9 q1 B; R, r5 l4 J ...
7 `. S$ H1 L- m else
4 C/ B& `& a8 f. E' ]/ H. A <statement sequence3>;
' @* P! q, `% e9 g+ W6 xend;
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6 v9 g4 x, Y8 E0 G& ?2循环语句$ @5 {7 ^8 e- Q# x& Z0 }5 _( r2 Y
(1) from <statement sequence1>
" V4 N1 n* b( @) d) I3 Q until <condition> loop
# Z0 S1 w' }! C% H! M <statement sequence2>;' s# o8 W' e0 q( R8 x8 H5 Y
end;
" v" t0 ^+ U/ R7 I5 e, C) { (2) while <condition> loop/ q3 Z1 c) g; C2 M0 s+ b
<statement sequence1>;7 n& j; h0 N/ h' ~2 r% d* ?5 X
end;1 T8 R/ _. p r
(3) repeat 3 E( F) c. z B) y5 J; J- a/ }8 |
<statement sequence1>;
& `6 b4 f. z' v8 _" x until <condition>;
% M5 R! L+ t/ p( B (4) for <condition> to <condition> loop
) h! d% z: v- x3 \1 i; d <statement sequence1>;
# n2 ?+ b0 z4 z# h next;( p7 U/ v6 {( W: _: O
3中断语句% d+ X' H# {8 r! v3 T
waituntil <condition> prio <integer expression>;
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5 [) d) \0 P- ~6 y( Q以上为常用的函数！
" l k6 o/ _/ i, j还有很多，如有需要我把资料发到你邮箱里
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