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发表于 2012-11-13 08:48:12
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1判断语句
" K3 Q1 X, E7 l P- } if <condition> then
% a1 I( o) M& N4 N <statement sequence1>;
# n( l9 Q) Y" C( u$ X+ k Z' }( R elseif <condition> then8 ]) d/ Q- @# J
<statement sequence2>;) [ Z6 I! C; p3 Q) Q$ f5 U! m
else
9 h( C3 J* `$ o J2 B <statement sequence3>;0 W% p/ i* a$ Q* e% _7 D
end;: ^, t/ }& B; O3 V- i2 b
如果分支比较多，用：
! A% B4 |4 X* o' W3 u0 Z inspect <expression>
( l) \0 U2 S! Y/ U5 Q( H when <constant_list> then6 b" |- H' ^: I5 M
<statement sequence1>;
6 {- I! ^/ J; Y* d; \- H3 L when <constant_list> then
/ v1 O+ n+ n- P) r5 q <statement sequence2>;
2 U. Z, W! n6 b" q6 U: y. I1 @+ r ...
. L# P$ Q) C- V- z else+ e7 J1 ~6 P" D% u ?5 s: m h
<statement sequence3>;( B- j* A* G: m# O
end;
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2循环语句# |( X d B5 I3 l' ^
(1) from <statement sequence1>
+ d; x' ]9 v8 T' S& ? until <condition> loop0 b: Y8 O6 w8 a* v) C) s8 M
<statement sequence2>;/ Y* ~( n+ u9 F( ~
end;- [; E6 o( Q. K- |
(2) while <condition> loop
, }7 r. a$ l$ P: o1 I' u <statement sequence1>;
# E8 I1 j/ a( b% K3 q2 \ end;
1 `0 }& B+ [1 F) v! h6 M0 _, U (3) repeat
" l( K# I) W4 M/ Y2 I <statement sequence1>;
' T. b. M+ Y# b% A until <condition>;9 g& l$ d0 t9 o" w9 a+ b& _
(4) for <condition> to <condition> loop
2 W( t* a% v7 Q- i <statement sequence1>;
6 O. C) D4 c4 a8 R. u: U next;
: {! d6 J) A' O9 L7 e# Q3中断语句
y: a6 y9 l8 b2 }; L, W waituntil <condition> prio <integer expression>;. p" A# Y- l9 x# u4 c; d
% G6 g0 a! V9 Y; r. r' T
: T% G; X; T* \以上为常用的函数！) l$ \( c7 O' |/ O9 H! S
还有很多，如有需要我把资料发到你邮箱里 Q; i0 Q8 p8 u* M
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