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发表于 2012-11-13 08:48:12
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1判断语句- Q7 v: z; O. h( R4 X1 t. h) E; Q
if <condition> then
: k; S' w; q! P B1 D* V4 \ <statement sequence1>;
/ H5 u7 V3 I2 M* F1 X! F8 O elseif <condition> then* [ Y+ B& i6 E$ I4 Y) O' w% L2 G
<statement sequence2>;
5 g. T, D) Z( ^5 S$ a3 G else
" G) ?8 Q# F! D! p$ Y; t) ] <statement sequence3>;! _. e& r! K! {, }
end;
7 h7 C& ^; C) k# F如果分支比较多，用：
- j; E0 N# h- T! x T; s. {5 _: y inspect <expression>
+ J) J6 O- s* I" S6 L' r0 a when <constant_list> then
) C( s; N2 S' Q' k/ R6 Y4 t <statement sequence1>;
+ c( e& o+ I% L- T% q( `, o when <constant_list> then
# s3 _4 a* b5 x1 [- j' t <statement sequence2>;
" ]. G: \; ^/ Z, v" |2 x5 k ...
- G3 X( t6 E; v, S: d& w" E else1 \, C% o, x; J7 Z
<statement sequence3>;
) u u- z/ \0 ?0 [end;
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2循环语句
! |& F5 b; r: e+ z (1) from <statement sequence1>6 t! {8 n6 ?' M
until <condition> loop! |, V; v: j" b8 c4 S" I/ m* t
<statement sequence2>;
( P" ]' Z) }/ R- t* g end;
6 H1 T$ L3 p) R0 B, T8 X# p (2) while <condition> loop
8 a/ Y. v7 X4 c' N <statement sequence1>;( s/ X6 n$ ]) e
end;, L ^8 ^2 D. j* T( J
(3) repeat
+ G% f+ w2 x, O! u$ a$ D' N <statement sequence1>;0 r! |) F+ h9 ]; X
until <condition>;9 Y, N- B; o) Y, @3 Q8 a' A
(4) for <condition> to <condition> loop! `, u4 B* p# a$ ^+ x1 V
<statement sequence1>;% \7 N4 N4 ]) [ W; w& D# g
next;
% p3 T' J6 f- \9 g3 z3中断语句2 I' g! c' [3 P* Z0 _
waituntil <condition> prio <integer expression>;: h# E, U7 w- t, N
$ i; A: q# F5 e% O6 s3 }7 q
* n9 Y) a& c) M- m以上为常用的函数！7 F9 t5 R* a6 a# f5 t4 c
还有很多，如有需要我把资料发到你邮箱里 % S: s0 D8 @7 w( d; x3 A% Y
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