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发表于 2012-11-13 08:48:12
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1判断语句( l! [: m1 _, q7 N
if <condition> then
' j* n0 i6 F# s( Y <statement sequence1>;$ ~. [, ^/ h4 S! }2 }5 h L
elseif <condition> then/ ?" m G! F' K" o* b0 j4 U
<statement sequence2>;
$ a. Q! [8 ^( e5 G9 k else
- W. o% S& P$ k# B* w0 J6 y' P; r& B% C <statement sequence3>;. ]4 A& [, t- y/ T, o
end;6 O% {5 q; n6 t
如果分支比较多，用：
6 E1 O$ H+ [" Q8 Q7 J" ?' Z. Q inspect <expression>
* M2 r' v8 O7 d. b when <constant_list> then
" E+ |. U! N$ Q5 d& X; v <statement sequence1>;4 _' N( y0 h7 Z+ z) r
when <constant_list> then4 a2 b1 @5 z. T( x! Y( }& g
<statement sequence2>;
. s; p6 P8 [6 j$ d" g. o8 R ...
9 S+ \6 B" g5 z& [1 X" O else
% M, ?, `& E+ ]! f0 a8 n& _+ i1 X: E0 v9 v <statement sequence3>;8 _8 w* B! l: g8 C
end;7 k- D& ^5 i4 R6 ^' \
3 O- M6 I# V0 `; B2循环语句, b/ u: e& }! O* ~2 u/ T) Y# |% e( K
(1) from <statement sequence1>
* z+ S& g: c' s# a" f$ T( P until <condition> loop
6 ~+ A8 w. ]# C! W, X, ] <statement sequence2>;* m, G2 y0 \% Y ~. t
end;: z5 J" D, t# J3 U
(2) while <condition> loop0 Z. ]- O8 j& i
<statement sequence1>;
6 I/ g! I: d" c. s" i- r end;
* B9 z1 t# v+ O4 o0 w9 c (3) repeat / L" T/ _0 X2 O8 {3 w/ \( z2 e
<statement sequence1>;
- s! e) ^8 Z w% R& _3 M until <condition>;
% D/ ~/ c3 d; i( q8 `1 o (4) for <condition> to <condition> loop8 }2 y3 D, Y6 \( E: }) ~, ^$ B
<statement sequence1>;% E, B" B+ n; l0 _' u6 w: S
next;" f# u( ~( Y6 h7 g& l$ ^
3中断语句
3 E4 _1 z% _3 L waituntil <condition> prio <integer expression>;
/ i: b. [9 L' c; [3 I. l) s
% I8 I" G) a0 c, l6 e K$ b1 L/ [
% @: Q+ M; x8 U5 O) k6 Z以上为常用的函数！5 Z: c/ X9 v' h. `+ ~: O8 ~% M1 Z
还有很多，如有需要我把资料发到你邮箱里
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