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发表于 2012-11-13 08:48:12
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1判断语句
d$ y7 l/ I1 {$ [& V if <condition> then
0 x5 M! A/ L! a9 n6 X ]; n <statement sequence1>;
' j+ X- \/ [7 l8 ^# L elseif <condition> then
% I4 z& ^" e/ L6 o$ o% C4 p <statement sequence2>;, u m$ I& p1 }1 W6 q5 L
else 1 G5 |! I; M, N! a1 l2 x$ t
<statement sequence3>;
# c6 `4 b3 q m4 `% j end;2 S$ w4 s. m6 ]/ W3 t2 c0 |
如果分支比较多，用：' f' O, T- t0 Q+ _+ @
inspect <expression>
! u2 c* O z1 n( }( Q: ~ when <constant_list> then$ X9 u6 _8 K& C: [( M4 k
<statement sequence1>;
0 Q- F3 ~/ B. i( x0 c when <constant_list> then0 X5 A) [0 F- \" G8 b5 ?. v
<statement sequence2>;9 X9 w: w9 X) [1 ]! Y* n
.... @+ z: ~- O4 f* w# P5 n1 E. J6 D6 s
else
3 M9 ^! T0 V& ]& o7 u <statement sequence3>;4 N0 Q6 ^& h& P* A& J. p" P0 @
end;- i' [- B6 {, c' X
( J$ X: C R5 k a( X2循环语句
1 w" h, P4 b- K0 N (1) from <statement sequence1>
: J4 f b \7 k3 m until <condition> loop
; x0 J" M2 H6 S3 t, \) i" o <statement sequence2>;
) T$ F5 D1 i. W7 h2 s* } end;
7 _$ N* T( ]3 t/ R/ H$ k6 G (2) while <condition> loop6 ]- _9 _; t4 s `( F3 ]
<statement sequence1>;3 a9 e: s' \* i& b! F
end;
. F6 ~. j/ B, ?, U. p& } (3) repeat - I1 ?2 h m3 `( K X. O
<statement sequence1>;
- f! d8 W, U5 c+ t# p& } q until <condition>;
2 [. T% G! `3 n (4) for <condition> to <condition> loop! A& V6 _9 E% }* ?9 P* C" l3 d5 H
<statement sequence1>;
( a Y7 m, ^3 d next;
' k' E1 S3 i' M- I3中断语句
& O3 [1 I9 a/ Q6 |6 B waituntil <condition> prio <integer expression>;( m. r9 W; o4 m; F3 G9 ]; T
A% t6 I# y6 `: k
) L- k8 g1 o# S' \1 I9 \以上为常用的函数！% p$ ?4 X/ C" l' S- G; t! A; W% v
还有很多，如有需要我把资料发到你邮箱里 % W7 F4 S# Z1 N7 D4 g5 T- @
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