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发表于 2012-11-13 08:48:12
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1判断语句
9 Z. ~3 U4 ^$ K2 a. l; h, U" M if <condition> then( n0 O s4 K( G5 H( G' m" D
<statement sequence1>;/ Y/ @* X' k, T9 d9 F" d% F _
elseif <condition> then
8 ]2 U, f$ `0 o0 } <statement sequence2>;
7 R/ q5 C/ @3 ^9 l else
5 c0 j4 k+ f9 q* |4 I" }/ q2 M <statement sequence3>;5 p K5 M" \# R; K. R& z. t; m
end;
1 U1 g {9 u F- M) F5 ], e如果分支比较多，用：
8 v, b+ i, F; V) V inspect <expression>
! F9 I$ X; b& w2 V% }1 m" { when <constant_list> then
3 M1 }% G" T) Y" v <statement sequence1>;
# G% e, @) m& ~4 s" @2 d% {% U when <constant_list> then& G. p' E9 S# y
<statement sequence2>;
$ F2 ?7 E7 H7 \' J8 t ...
, q7 u; f- W) k2 j O% G1 S else! @2 s! [! j% }$ v" K/ u, ~
<statement sequence3>;7 d+ A7 G0 L( e3 |; p, S% a2 j
end;
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2循环语句4 M2 {$ M3 C9 z# }- n& S
(1) from <statement sequence1>
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<statement sequence2>;
$ V6 F, ?" l; P* k: J end; S" Z4 U4 Y+ P7 B0 j* k3 \+ O( F
(2) while <condition> loop
& V9 V9 q* p9 ? t& c4 V1 k) O+ k <statement sequence1>;9 Z& g5 |/ v- J+ m3 i" A2 Q, B
end;
4 M$ z% n2 [2 b4 g- _# s/ S5 z7 A (3) repeat
8 q- J! j0 |7 G( I. \) k <statement sequence1>;
& k- @9 e+ o7 r" B3 N" s until <condition>;' |0 l8 I2 J0 ?7 O
(4) for <condition> to <condition> loop/ j y6 u8 [2 i `0 c. Z
<statement sequence1>;& D: \4 @8 w6 |4 S# }9 A/ v, {5 Z
next;" n2 K# I8 ]! g6 n, b
3中断语句$ t, L7 a# N& R
waituntil <condition> prio <integer expression>;
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+ ^) G' o4 I* C& f$ v: L3 U7 o以上为常用的函数！+ m! {+ G' J V/ d: D
还有很多，如有需要我把资料发到你邮箱里 # j( g" s2 B, b( Y4 d
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