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发表于 2012-11-13 08:48:12
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1判断语句# e- N/ X0 c9 G. z
if <condition> then
g$ j i$ f' u$ u) l0 _. Y7 N <statement sequence1>;
5 c* H* W- g: U1 G elseif <condition> then& R. K) k9 H9 u$ t7 D
<statement sequence2>;
; J: }% s4 t! l: d else
9 M6 F w6 O6 [, @ <statement sequence3>;
' q; ~' p! x& l end;
% h& K5 r! p& g/ W# _如果分支比较多，用：! y- K& H6 w6 x
inspect <expression>
8 j! O9 ]+ n; d; E4 W when <constant_list> then
2 a7 o9 k' Q; f: ^ A0 O/ o <statement sequence1>;
% c+ Z% Y+ W9 i when <constant_list> then
# a0 ^: Q9 M1 O3 e" H/ z <statement sequence2>;
; h9 z& k9 N) ^3 l ..., ]: D, |! w, Y) y
else
6 m5 Q; {' Y# { <statement sequence3>;1 C' u5 Z2 y, T: t( {, A
end;
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9 v2 e+ `4 r( d; g2循环语句1 J5 b" J X- v3 H
(1) from <statement sequence1>, G4 \+ J. U9 N( x8 O
until <condition> loop( P/ v" `- i1 U. I- T1 H
<statement sequence2>;
' Q9 l( c& f7 e$ j' r end;
]! O. K6 L, x! \ (2) while <condition> loop0 k/ x" _5 O; L! M7 O4 L
<statement sequence1>;
( I4 R+ l+ w6 a4 S* p' e$ m0 U end;
( M* h1 n( W# X* L; H& ~ (3) repeat $ g8 z' }) T( s3 n {% D' q' y
<statement sequence1>;8 k) H5 D4 K9 W7 }- q5 M
until <condition>;: s9 W0 |1 r2 u8 R" p, N' K2 E% a
(4) for <condition> to <condition> loop' n6 D1 U. b, U( O2 j
<statement sequence1>;2 W! H# S/ Z7 h
next;9 T0 r4 }" p( N# Q
3中断语句
/ [# ?; h, i- w4 x8 h waituntil <condition> prio <integer expression>;
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" |: m9 ]6 m/ w# g8 E5 W9 g% T以上为常用的函数！
$ T# M: E% I4 N, l9 X* f) R还有很多，如有需要我把资料发到你邮箱里 , b. r$ Q2 W( w+ {
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