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发表于 2012-11-13 08:48:12
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1判断语句# g$ M: `. p; Y. o) }
if <condition> then
2 j0 Y5 `3 O; I' p5 M <statement sequence1>;) M; i/ @% r$ a2 i5 ^1 A- W
elseif <condition> then+ d, W9 h/ F9 [* o; u
<statement sequence2>;
3 l) {- v8 C" c$ U else
8 I: Y, {1 A2 m# l; ?3 \% t1 h <statement sequence3>;+ L+ y: u# u; I0 ~" O# W/ c
end;
; k, |3 u3 z3 F3 w) J$ y# e如果分支比较多,用:5 {0 P4 Q/ ]! _" n
inspect <expression>
# f. u6 k' o6 ^ when <constant_list> then& _4 x' w G- j0 M3 ?
<statement sequence1>;# s9 c5 J4 W# D7 K9 d |
when <constant_list> then) m3 }3 O8 O) S4 ` P- a
<statement sequence2>;5 |9 K$ }" H6 W2 f8 X
...# G8 X. l# v" j# |% F4 N
else
( y% k" N* L5 [4 p8 s <statement sequence3>;
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2循环语句" \8 t4 f+ Q& g# Y5 U
(1) from <statement sequence1>
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<statement sequence2>;
' y8 M0 \9 i9 l9 R, s& K end;) ]! N0 B; I; f t {9 ^9 i
(2) while <condition> loop2 F+ X$ ?$ r3 t( \1 {3 L
<statement sequence1>;( D9 k/ N* ]" i
end;
+ z6 l8 r3 {7 N( w (3) repeat
: Y% f9 y4 r( o G <statement sequence1>;
W7 }& N0 i }7 i" n% `* S until <condition>;
+ S! V( B/ f7 t (4) for <condition> to <condition> loop
; b$ @- Q- n- m& j9 g% [ d <statement sequence1>;
' g" @! A: y4 a) a6 X- l next;
1 X( @1 H+ o! i3 v7 t3中断语句0 F9 R, f$ G3 s
waituntil <condition> prio <integer expression>;
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' z6 ~ i' \7 p! @5 h以上为常用的函数!
1 B6 n& V+ ^+ h: k4 ?/ N. J还有很多,如有需要我把资料发到你邮箱里 8 D) U- |+ T4 K' V8 \8 p% K: r
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