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发表于 2012-11-13 08:48:12
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1判断语句
( X% {$ R, n" A7 _! f if <condition> then4 U$ q* H# a! j3 @
<statement sequence1>;
9 U+ O6 g# n8 J. ]8 ^2 N X elseif <condition> then( O7 G* V8 J4 \1 K( c) k
<statement sequence2>;
0 l9 x" U% d s( u+ Z r# A else
/ G$ @" _5 M' e7 p <statement sequence3>;6 k4 p3 S& S! L- C8 ^3 l
end;
9 E' @1 b1 ~7 D f4 W4 O1 {如果分支比较多，用：
2 L1 G; ?! R; ? X8 I7 z6 N inspect <expression>7 w- y3 P! X3 X& x' @" ?
when <constant_list> then
" ^& U6 k0 I3 \ <statement sequence1>;
0 V/ |4 q8 X# e& W: ^ when <constant_list> then1 R9 f4 F! c+ t7 \
<statement sequence2>;
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else
- C8 R" P) k, Y <statement sequence3>;( c7 V* W1 _2 w9 V u
end;
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2循环语句6 `: z' q* n7 a3 X( B) ]7 H
(1) from <statement sequence1>9 F7 X# @5 ^6 F! a! o, S' M' C! O T
until <condition> loop: W' \- r# T3 W& E# V, X! t, z/ K
<statement sequence2>;6 E/ z$ y9 m3 w; ?0 g
end;
# u9 T! V" J4 O (2) while <condition> loop! ^% x. c; g4 j% T9 E' y& d
<statement sequence1>;
8 P0 C- o0 M6 X end;
2 W( E9 v( O* I; ? (3) repeat 7 b; P) Q |! ]7 V0 _3 o1 J
<statement sequence1>;
9 S$ L2 W) C$ a. b/ T until <condition>;
9 k9 z/ n5 _3 o9 A" G7 H! J (4) for <condition> to <condition> loop4 `8 z3 I: l; l
<statement sequence1>;
& x) A9 i; L3 }# G$ X next;
; ~* H! R; O) a' T! _* Z, \3中断语句
6 Z$ W4 p$ a! `- U waituntil <condition> prio <integer expression>;
6 Q1 e% X( _7 F, E: P$ f9 d( W4 F& r* a! l" E
6 Q! J) x% u4 @以上为常用的函数！ o ?/ S) B# F0 e+ j3 U
还有很多，如有需要我把资料发到你邮箱里 $ [0 w/ W! u( z' s0 p+ D O1 f# i' i
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