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发表于 2012-11-13 08:48:12
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1判断语句
5 F" `1 L! B# D [ if <condition> then
: e k# i% [- ~" M. z <statement sequence1>;
" x; b# [% B9 n2 a elseif <condition> then
: o, z9 `# g9 y V: e2 [$ q <statement sequence2>;
8 j3 E: q* z) t/ F else
( p: y7 j7 ^) E7 L8 A. ^ <statement sequence3>;5 b4 K6 z9 U) n; a+ Q7 Z3 U$ @
end;
: Z3 G" Y- Q0 d如果分支比较多，用：
, U+ @* F2 ~ Q% G" J# k inspect <expression>
8 F, {7 X( R4 W! M, {. L- u when <constant_list> then6 Q, o# a% } h3 \% h8 f
<statement sequence1>;
0 j/ h, Y$ }, B) z5 G6 {* T0 S1 S when <constant_list> then1 l$ a& ]+ R8 t9 J5 ~/ z+ {$ O
<statement sequence2>;
0 l! F1 y4 K0 K, ~8 I2 I. s ...
5 ^' b2 r3 U7 w2 B3 w& y, U+ l else. A- v. s& j3 ]' C
<statement sequence3>;
1 i! _$ W, i0 B' r5 w) bend;0 B0 G, s" ]1 O3 D
5 i( @" x' U) N. I6 _2循环语句
( } I4 P8 V4 F. ~( ? (1) from <statement sequence1>$ g( i' J9 t# P1 W+ p) Q
until <condition> loop) [! X/ `9 g1 Y' m: a2 R
<statement sequence2>;7 g: r% U9 l0 x. H: ?9 t
end;
8 J; V3 C- G+ p (2) while <condition> loop! |5 i* `/ E/ {2 ]
<statement sequence1>;
N8 I0 H0 h7 ]( q1 j end;
" H" {' `$ @" v5 f/ }2 v (3) repeat
# G8 S- r/ v0 Y* \7 s <statement sequence1>;
. E# H( y$ { E& c- J3 q until <condition>;
/ F4 _) Q5 W! J* p* l% { (4) for <condition> to <condition> loop
L) B5 p$ I# a5 a <statement sequence1>;. \9 a- |& w- b: }% W6 n' A2 m# g6 s
next;
- C. R' B4 i6 A0 W; X3中断语句7 c# I; n5 Z( L% m
waituntil <condition> prio <integer expression>;$ F' n* h- X+ }
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以上为常用的函数！) r! c5 u/ O+ }8 \& P+ n
还有很多，如有需要我把资料发到你邮箱里
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