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发表于 2012-11-13 08:48:12
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1判断语句
; M' ~6 ]. Y; z* p3 W$ U if <condition> then0 H9 C7 N& X5 S% A8 S. z# K
<statement sequence1>;( K- K0 Z% J1 @
elseif <condition> then+ W2 u" E4 G+ x% y6 l" K
<statement sequence2>;, P }" R7 X9 J( i0 k
else
3 u! q3 ~' L; f; a/ t- E) A <statement sequence3>;( W/ S4 a; H1 r+ N
end;
/ f$ e9 s& w; F" M5 G9 k; E如果分支比较多，用：$ G6 _' n) I% n; ?( X5 K$ w7 v8 E
inspect <expression>
: E) E# D9 m: M, B when <constant_list> then( A/ `2 m- w! H) Q: J
<statement sequence1>;
0 S6 O. ~6 ~ X( W when <constant_list> then
& t0 s# w( E! S$ x <statement sequence2>;5 n e$ v: Q& D. v
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else0 U+ Y' i3 A' s
<statement sequence3>;
# y8 d* v- p4 x6 U6 c0 cend;% L* C1 j+ K$ H; K) x) k) G
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2循环语句
% ^' {+ m3 q8 q6 [2 v6 `/ s1 Q# @4 {8 z (1) from <statement sequence1>' E( ?2 _- l" s- n+ q& \
until <condition> loop+ I' w5 A9 u% J. c6 ]$ A
<statement sequence2>;
0 k) N9 I! S% a1 [$ M8 I+ A3 P8 O2 V end;
' `2 F6 y, z5 l) x5 l( {7 A+ q; y+ @ (2) while <condition> loop
' A" k0 a6 S8 n( E6 f9 t! E <statement sequence1>;4 w8 Q) x& p+ v! G3 U
end;$ @/ p/ A# ^' ]9 l+ I- d
(3) repeat
% `4 Y) | p& a7 a/ H( |( t <statement sequence1>;! H& C- a! U( B. {) H
until <condition>;
$ \3 m! g1 T. w (4) for <condition> to <condition> loop% W5 Y4 b/ z3 h' H, z5 }+ t3 E
<statement sequence1>;
- E4 x2 x b$ f* A1 L0 J, t next;
* O) T _( h* a- ~3中断语句
' F7 i+ G7 x% j6 Y, Z" z8 D# J waituntil <condition> prio <integer expression>;- g$ p0 Q0 N( n& R# l) m
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( Z: B" X# n2 e- e- K9 i, f8 w以上为常用的函数！
& N8 P& m. z& r还有很多，如有需要我把资料发到你邮箱里 & h* H+ t/ n1 H6 a
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