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发表于 2012-11-13 08:48:12
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1判断语句) [' N5 N, y9 w4 t" p/ `
if <condition> then/ A) P" O$ X a
<statement sequence1>; K J% t; I; N& b0 l
elseif <condition> then) |( T4 j$ A$ b. [, Y5 Z3 j7 N" Y
<statement sequence2>;/ Y* K% H5 G) U, P
else 9 K+ h% W4 }1 I! ?- V& A# K- R& n
<statement sequence3>;: J* |' \, Z7 y7 Q
end;
" `& N, ~- i# s7 N如果分支比较多，用：. J' s1 e. l/ D3 h3 H
inspect <expression>
# b: Q' U+ ?! L' J* v, v% W when <constant_list> then' `. S/ ~- @% f# O
<statement sequence1>;# z! B0 u) G+ n) u+ G) z5 [
when <constant_list> then# g* W! e! U- y: w& y
<statement sequence2>;
7 @+ S% m7 n1 w) E# s V( i ...
& h+ V9 x6 b( }; a- [1 S, F' |" A8 X- Q else
* N1 s, \! _+ _* h$ ^ <statement sequence3>;4 d' I) V5 s5 K: q
end;
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; Y; F: c5 _; d6 K2循环语句
/ O, U; U! c! i' I# I (1) from <statement sequence1>
0 a& L% M4 h, C- p5 }$ l until <condition> loop
! Y# P# ^$ |/ J: a8 K4 U# m. l9 K( S" g <statement sequence2>;/ f4 }( p" W1 W( P
end;9 n- M% F: ~; U% Y
(2) while <condition> loop
' B' z& {6 z4 D8 @5 _$ P, u/ K <statement sequence1>;& h4 m3 k4 n5 j6 J
end;
1 I% ?' l, C: `" \# J5 R (3) repeat & J2 c) ~* g* Z L' O
<statement sequence1>;. H4 G& ~0 T: g6 O
until <condition>;' Z- }* g0 z# o* b; D& J% B# F
(4) for <condition> to <condition> loop
7 v, s/ [* B6 I W9 M# |, p <statement sequence1>;
& B5 R! C7 f% R: j/ `* ] next;# W# _. \" O' {# e4 L. P, C! H
3中断语句
" T5 ]# Q$ w+ p waituntil <condition> prio <integer expression>;
0 s. X, b' [/ C) [5 X! X: d5 C8 r3 x! i3 d9 d: X# p; o
% m: \ Q: _% Z以上为常用的函数！
; l }% _; n, e# {, D5 K% ]还有很多，如有需要我把资料发到你邮箱里 ; X% V6 l7 X% x2 e
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