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发表于 2012-11-13 08:48:12
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1判断语句6 Z; P: O' r' }. B0 \
if <condition> then, f$ y b" }- b5 y$ a% p7 R, r) J6 _& X
<statement sequence1>;
! W; w' o% Z1 _( A1 X( q' c elseif <condition> then( G! ~$ u8 j: F; g' o3 i4 G' E
<statement sequence2>;
6 P4 k% q# o" H+ H7 [, J) J1 ~" s$ X1 z else ( `1 {2 B) ^" ~& i
<statement sequence3>;- O& |5 V$ W w5 N% i3 X; _% n5 @& w+ ]
end;
; c5 x0 u" p) W* g# q5 E I如果分支比较多，用：( D+ W6 H9 K# P3 L5 Y
inspect <expression>
$ `7 t0 r% T) Q: ]. {6 c when <constant_list> then8 o/ t0 _6 u& O
<statement sequence1>;
0 _9 ~! s N9 s# C when <constant_list> then' i, A, L( W( T7 h) Y6 {0 T: K
<statement sequence2>;* w$ }6 O$ W9 Q
.... |! i$ q J: \+ J8 |& {
else3 G/ \7 b- r5 p0 {: ?. d' I
<statement sequence3>;$ T# R; M; j. c; s0 H' t9 C6 s3 u
end;
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2循环语句; |) S; a9 E% S. u' V+ X: W" A
(1) from <statement sequence1>9 @+ \( ]: m' p! L6 Y8 i8 `$ Y
until <condition> loop7 ~; x) x! }% p2 `6 U7 u
<statement sequence2>;8 f& R. I3 n3 V
end;$ C6 a# U. R, m! b# ]
(2) while <condition> loop- F& ^: G7 [/ J" i9 B
<statement sequence1>; _# x+ A1 `& F# E8 Q9 p
end;' E s; W, r$ _/ K4 @+ K. T
(3) repeat % }1 I2 P. j) p$ l6 I" X! Y
<statement sequence1>;
" r% ]) r) K8 G1 w8 p8 ] until <condition>;1 y3 d( }8 o5 o& Q# s! r0 L' L
(4) for <condition> to <condition> loop, d u& s' C5 i! u( [% j
<statement sequence1>;: X& g9 b/ a S0 U8 S, ]
next;
1 G& H. a7 i' S& x/ {3中断语句% q* V. ?& `, M1 j
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
* L( D6 G$ n8 g x: M5 c( G# e/ @( P! e还有很多，如有需要我把资料发到你邮箱里 5 k; @1 S$ u4 }1 ~' L; B, Y4 [" S
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