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发表于 2012-11-13 08:48:12
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1判断语句2 u- X2 r8 y2 Y+ r- D
if <condition> then7 H' P" K7 }4 T
<statement sequence1>;! i8 N- {+ i8 l) d! x' E' B$ P
elseif <condition> then6 v s0 J! y+ H, v1 g7 w/ c$ ?0 i& \
<statement sequence2>;
+ Y4 z3 R7 w6 F. \9 C S else - p ?* a" X. r! K* ^
<statement sequence3>;
0 n7 q9 k& L: { end;+ P" N# E1 k. w5 s) }' R7 q
如果分支比较多，用：2 _8 a, B& D F7 }2 R
inspect <expression>. z# z5 Y! D" H; O5 y) t8 @" A. q
when <constant_list> then
% B% }( Z) R1 u h9 { <statement sequence1>;
3 g8 X' Y. ?* a5 L7 W3 e when <constant_list> then. K/ E3 B2 w* M: _* A0 I# b7 w
<statement sequence2>;
6 {5 G# h5 m2 x) S- h6 T ...
! j. j- E; }7 w3 S5 F' J else
+ m3 b) X# h& \ u; k7 J <statement sequence3>;
: e O, _' q* J# O5 H& K& ?end;
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" v0 {. L6 O ?8 t8 x4 o) K2循环语句
9 r# V( U) n% \( b+ Q (1) from <statement sequence1>
7 O) j$ \; G9 |8 d8 |' c" L until <condition> loop( ~# _ P4 l2 g1 {" L
<statement sequence2>;1 w9 v6 s; f% y5 O8 f
end;
7 o- L, [' `* c9 f (2) while <condition> loop; p, o- H/ E7 W/ j# `* |1 ?3 R
<statement sequence1>;0 i1 ^$ t: D3 y1 U5 ^6 m
end;
% N2 R2 F; n2 J. S- | (3) repeat 6 V# _% u# |4 ^ l
<statement sequence1>;
. [4 P: j; P) o9 n3 T& o until <condition>;
3 z* l: d' e+ D$ P& P @) C; D (4) for <condition> to <condition> loop
" o- |$ ^& {$ `* ~- Z <statement sequence1>;
4 ?8 T! A, C* i7 U$ J7 J; Y0 a2 t8 ~ next;
% h7 ~/ x, @6 q* n- ~3中断语句. N) W5 ~9 L4 r; t( g9 F5 a9 N3 j! M
waituntil <condition> prio <integer expression>;8 t. R/ q! k. X7 O6 W7 H9 e
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以上为常用的函数！' `, ~& P$ T8 T: s
还有很多，如有需要我把资料发到你邮箱里 & \: P. s% J& | k$ G) y3 J
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