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发表于 2012-11-13 08:48:12
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1判断语句: N3 `9 Z+ N) J; U; j
if <condition> then9 `) B# [( M- r: t8 e
<statement sequence1>;
, s. k7 G& X. }, l1 ^0 ^ elseif <condition> then
, |: m+ @" K2 `) r/ o7 B# X9 p4 b <statement sequence2>;! { _# G3 T9 f+ x9 o
else + }1 L4 g& r9 p7 y5 I# r1 A- L$ r
<statement sequence3>;$ K4 v, J7 k, i
end;; u8 B2 Y; x6 |. Q# C( Y
如果分支比较多，用：
. j* C; D+ `( a0 V1 C% y& x5 \ inspect <expression>
8 T9 p0 Y. |/ q# Z' h when <constant_list> then" r1 Y i, |! `+ T7 i. x( d
<statement sequence1>;
9 h( \3 M3 \1 A ^ when <constant_list> then
4 U, T3 P- t4 \& v. y& J <statement sequence2>;
. t1 |+ C j. j$ y0 T7 h ...
3 a7 B8 T( o; d) z( X" T8 ` else
0 R( }% o- |6 R# I+ h6 |- g <statement sequence3>;
# p, W& [3 w9 v: e+ q3 zend;* n4 }7 H0 Z# W% c' X3 `* O
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2循环语句& x3 ]; f- D) s& L: U
(1) from <statement sequence1>% l7 H) B% W# a
until <condition> loop5 H$ i2 j# [9 w3 y- B3 q# T
<statement sequence2>;( X. c l- S- g5 r6 H2 J
end;8 C- ?. r e X$ R
(2) while <condition> loop' n# n* h" v: [
<statement sequence1>;0 v9 d8 f4 g, x4 j$ G
end;( j& c( k0 L, L+ |: F; r
(3) repeat ) f8 G( u' `0 m. Y* _+ q, v' h
<statement sequence1>;
% ]- x% m" M5 c$ X; ?: y2 S until <condition>;
9 P- ^- ]# Q4 r) Q: E9 E% P& U. g% q3 q (4) for <condition> to <condition> loop+ T; H6 F& c- X$ h6 R# H
<statement sequence1>;
/ p. t1 |! Q! h, }# y next;
, B1 U8 c- T/ W" @, S1 t3中断语句* x8 c9 e. D+ M2 m
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
7 f+ @& _1 z5 T! i. A9 q还有很多，如有需要我把资料发到你邮箱里
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