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发表于 2012-11-13 08:48:12
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1判断语句$ t/ {2 h) G" {0 ~- Y9 Z! K1 y
if <condition> then
0 r1 G+ U7 t+ i n0 @- {% r <statement sequence1>;
: Q3 U/ J/ `; y% N) W elseif <condition> then
6 i% h$ H" c' b0 E/ Z& L4 E8 X% d <statement sequence2>;/ ~/ E( n+ o: @, q4 \
else ) y, k, u! K4 y
<statement sequence3>; W0 A% x: Z! k5 v& B
end;% A/ i# `/ N/ w" Z
如果分支比较多，用：
7 L0 d; Z/ ~. n6 m2 h% b7 [ inspect <expression>9 a# v. S9 j. N9 `. T9 K
when <constant_list> then
0 Y! e$ G1 n1 D3 f <statement sequence1>;
/ t( z* I9 ~3 M: _: w- F9 h7 ` when <constant_list> then r8 @2 ]/ A l) ^1 Z
<statement sequence2>;
: a* Q3 d" f# Q/ W% V0 u W ...
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<statement sequence3>;) ]9 [# k. y$ H1 {2 Y+ o
end;) v' _" g0 |3 O0 U5 H
5 B U k* ?0 g% i2 J& v# V/ E1 |2循环语句4 W% U& {# [7 z* H8 p4 i
(1) from <statement sequence1>. j7 O) G* R) c' a3 r
until <condition> loop a. m1 r) l; ?- K3 G& H! Z" z3 M, B
<statement sequence2>;
$ w8 m/ P8 t8 ]0 h end;; Y+ P1 o: J2 Q I) N- e
(2) while <condition> loop9 q" x h8 h9 B
<statement sequence1>;
/ I3 b g) j" B+ Z8 G9 Z# \, K1 L end;% Z$ Z6 {, S; r! d% W+ S
(3) repeat / B \7 w/ J& v6 f6 i
<statement sequence1>;
% F" f4 N) y1 A: d until <condition>;
4 r/ j+ A( W- S) U$ G7 \ (4) for <condition> to <condition> loop, ]' _( s2 l% g# f' `) |
<statement sequence1>;
9 I1 X& Y* e- A9 c next;6 b' i ]. t- r- X/ ~
3中断语句
9 c. }) e$ h; |! F" ^0 ~ waituntil <condition> prio <integer expression>;7 l4 Z7 Y" i. N/ a \# c
% m7 S' y7 r+ H$ W" ?
) q( p6 x: Z! [/ z0 G以上为常用的函数！, _+ J7 o3 ]: Y7 U9 Z B0 A$ \
还有很多，如有需要我把资料发到你邮箱里 ! Q2 ]% A, A. r) E- Q" \
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