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发表于 2012-11-13 08:48:12
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1判断语句1 ^: g. \0 d' \" F# B: |, h0 g
if <condition> then( \; Y5 W, A2 [ R+ [& P9 b
<statement sequence1>;' ~8 d7 i. G( _- v8 F- d* w# p
elseif <condition> then: \1 W- \% _( A0 s
<statement sequence2>;3 i6 h8 C% P* Y/ { v9 }9 `! I
else 4 Y& [! ~# Y0 i! p0 B7 c
<statement sequence3>;
0 m( B; q* v2 l3 \% ] end;
$ r0 r. o4 c7 W8 W2 i2 T$ y% N如果分支比较多，用：/ J: E5 k6 i3 |
inspect <expression>* K! O+ ?7 }) Z0 v- Z
when <constant_list> then
7 |) |0 Z" a4 W <statement sequence1>;& E, U2 D4 w9 b- Z
when <constant_list> then
9 T! a0 ?& |5 }$ ?& W3 l <statement sequence2>;
2 O: x" `! S% C: {- s7 H: l7 K$ \ ...
& H0 G* T3 ?' A0 z! G5 U) [; G else
& m; ^ H( Y) `9 q1 q( ^% V <statement sequence3>;3 H+ S* Z4 e6 @+ K! ^) K2 y
end;
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2循环语句( w* l1 p9 e1 N" ^* n$ R+ N% X
(1) from <statement sequence1>
; `5 I, X, `7 y. i( j until <condition> loop
p( I# Q+ p Q: P3 o L# k& M; i <statement sequence2>;
x O% g- }8 R" K, s* R end;
. Q9 h2 ^$ m: W" ]/ v6 O (2) while <condition> loop
* q+ d+ I& v7 m( ? P <statement sequence1>;1 P5 l5 B; `& r7 x H( |# ^& b! `
end;/ Z* b% h9 ]1 `5 h& ]
(3) repeat
& @; r7 v6 W4 S6 f7 |$ ?) j B <statement sequence1>;8 u7 ^0 A1 Y2 J
until <condition>;
. y3 I1 I0 {2 q( @4 ^+ O M (4) for <condition> to <condition> loop; i" y e$ H: ]' P- H% A
<statement sequence1>;2 I0 k/ h5 z' a# q
next;. h0 L) d' c. p3 [
3中断语句) `" u' e! i2 N3 W- y& }6 }2 x
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 b3 q' L( u1 W* c还有很多，如有需要我把资料发到你邮箱里 # m7 C: E" f" o/ ]$ n
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