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发表于 2012-11-13 08:48:12
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1判断语句
- l) n3 D; W, j/ u) Q O1 m if <condition> then
( l6 O* a6 D4 l* f, F% d& ^ <statement sequence1>;3 A. m! h- f4 I5 L8 ~/ n6 O
elseif <condition> then
% h# H) X( \! }$ f: D <statement sequence2>;) a; D& ^9 b9 k3 d; r- K: [9 Y
else
" B0 _9 o, S9 m- P. e9 [ <statement sequence3>;9 L, x% \- K. X; I% {( \4 b5 r8 j# _3 t6 I
end;
; Q: V2 u4 Y$ z! j6 M( j: M如果分支比较多，用：! k0 W6 M% e+ x# [
inspect <expression>% E& `) ?) Z1 ]+ E- x$ \
when <constant_list> then% L/ J2 c# C2 T- c
<statement sequence1>;
' ?0 {$ Y+ F. Y. s9 f when <constant_list> then
3 C& W7 S) x8 F <statement sequence2>;
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else
9 V/ r9 |% b! u <statement sequence3>;! M5 G! g6 M2 N# b2 D! p ?
end;3 T% B( Y2 R$ \9 ^
0 t h' ?1 p" O; u6 v2循环语句
4 c0 ^1 Y- {3 i8 g8 m/ J0 K (1) from <statement sequence1>
* ?: ~9 z) {3 \, M6 _/ ^ until <condition> loop+ ?2 [# G% q: F
<statement sequence2>;2 b) X$ b* ]; T
end;- N) ]( \% G! H, U* j2 r2 o! H
(2) while <condition> loop) A6 ^- F( Q/ ]; Q
<statement sequence1>;
9 k" R: L+ x# L: x end;* C' F2 s- }/ [0 x, h E5 c
(3) repeat 9 x; u! U. c, V
<statement sequence1>;
f0 b! @" o" j5 E A) ^' Y* K until <condition>;
$ j- O+ U7 }- h. ^ g D (4) for <condition> to <condition> loop, l9 B4 P! P) ^" V& Z# N$ n
<statement sequence1>;* r. ?- x0 K( y/ E6 Q T
next;
! `8 H4 ?$ b; m1 y9 I, {3中断语句$ c4 _8 G( n8 w. \. u1 d
waituntil <condition> prio <integer expression>;( V! \& } h9 v3 S; n; q: s, \9 }; q
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3 T, n$ @1 ~% ~+ D5 U" K4 g7 q0 d以上为常用的函数！0 _; R+ j' `2 Y h3 D& `
还有很多，如有需要我把资料发到你邮箱里
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