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发表于 2012-11-13 08:48:12
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1判断语句: Z S7 S4 { g1 B% N+ s
if <condition> then5 S/ L$ e. |5 a8 n' T4 m
<statement sequence1>;: ^' U7 V0 Y; S& R
elseif <condition> then
& X3 _, ~5 U5 d4 m6 x <statement sequence2>;; m% Q$ S# h/ E. k
else % P' \: D. j8 f/ g8 m
<statement sequence3>;* x" m4 P3 \4 f, u9 W
end;2 h0 A3 Y; o% D2 O) G9 Q$ A+ Y
如果分支比较多,用:+ a! ^8 a) K9 O. X, }0 l) F* A6 O
inspect <expression>
# G U. E( D3 C9 V/ f+ H0 T; w when <constant_list> then% |/ b% M4 h# s8 O7 N& V8 m
<statement sequence1>;8 a2 \) q& k4 e5 I4 O4 y
when <constant_list> then+ ^7 u( D0 S6 r4 z t( k/ z' Y
<statement sequence2>;
9 d" G+ W. {0 }; [6 c* j; w ...
( p3 Y5 h1 O# i# \8 k+ S else
6 l8 j# { E7 s- @ <statement sequence3>;) r$ @' g& W7 j, S" W" H5 Q1 o$ _
end;# `" \: A# l: r
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2循环语句
. v$ \) ]% e1 Z1 C3 N (1) from <statement sequence1>
! S: T$ p& I4 a1 f; X* E until <condition> loop
2 j- V. I, v% @7 [, O <statement sequence2>;/ e$ m) j% ]: ]: V( L5 i
end;6 n# n8 I' W8 _9 Y$ [
(2) while <condition> loop: U5 }$ T c7 W# i2 `, z. M. H% p
<statement sequence1>;
# j2 k; p' [" G/ | end;
& b. R) e/ M2 u N3 q" ` (3) repeat
- }. i9 z7 z6 M" t <statement sequence1>;7 A2 C) a) W3 k& P9 I
until <condition>;# t, `/ V7 N& J/ D3 w
(4) for <condition> to <condition> loop
; Y$ S5 n3 E7 y* |4 ^ <statement sequence1>;( [+ ?8 L+ H6 e _) i) C
next;$ F- t" g `" s0 E; O
3中断语句4 W! I6 F4 M X7 \
waituntil <condition> prio <integer expression>;- ~3 E% i' ^& g8 d4 O- c
5 L9 a& [& l% X" }
$ B$ }+ ?+ i4 z. T# f
以上为常用的函数!
|6 d3 y, I+ Q5 D还有很多,如有需要我把资料发到你邮箱里
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