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发表于 2012-11-13 08:48:12
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1判断语句
% x. ]( j6 m2 _, C if <condition> then: O" b5 c1 e' ?% n4 d
<statement sequence1>;
. x1 L9 P" c( z elseif <condition> then4 Y6 \3 ]: F# t0 O8 Q
<statement sequence2>;- q' N$ b! ~0 z/ z
else
; n2 C( a: _3 B0 K8 u <statement sequence3>;5 J2 X) Y) e, `. c/ v+ m
end;
$ ^( [) f+ T, U8 }& v6 I如果分支比较多，用：
; ?6 Y y7 }$ f+ j: |+ F inspect <expression>+ X1 Q' G2 D) s: Q) ^' j
when <constant_list> then1 t$ F$ A/ U; _' T, j5 [+ M" b
<statement sequence1>;
" f/ Q4 b7 n' K1 ` when <constant_list> then# R1 g9 V6 u2 e! T8 T: @% M+ c4 Z4 \
<statement sequence2>;
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else- B4 g+ a5 ], F! S
<statement sequence3>;
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" h& a1 f4 b4 }& l2 u& }2循环语句7 r% Z; W! i% l1 S9 i
(1) from <statement sequence1># n2 a9 V. |0 v2 N4 s+ p
until <condition> loop
1 b0 o8 X r" w) C8 i <statement sequence2>;
% q0 o: C# `0 o0 z+ t g1 _/ |( d end;
# A/ k2 [( m* G+ C/ ?; F (2) while <condition> loop) D" m5 |3 D5 F, Q7 }
<statement sequence1>; |# b$ ~0 \$ m; [2 t
end;& q( p J; E$ v% W- l* r
(3) repeat
- g& h5 H# i/ k' S0 c# j <statement sequence1>;
( i1 L7 g9 t) [; l+ ]0 V9 ~$ y until <condition>;0 u4 d" t8 P, y6 c+ p9 F+ B
(4) for <condition> to <condition> loop: b# H5 Q' m6 V o8 W
<statement sequence1>;
f5 [0 X2 R/ ] next;2 t! b9 j& N& N4 y1 y5 e$ F
3中断语句
' N- f7 {4 w2 ? L7 w; f$ X waituntil <condition> prio <integer expression>;
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& K& N* X ^, p8 ?9 _以上为常用的函数！
! U/ }' h8 g' ^$ P' q( V还有很多，如有需要我把资料发到你邮箱里 , }) d3 |, Z; l: z+ z/ ]
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