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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
& K9 n6 o0 y9 A( j' T if <condition> then
: B# Z& G1 o9 f0 ~, G7 E2 v$ D <statement sequence1>;
) X3 \# o1 y1 C. x2 e elseif <condition> then
* M% R# ^8 D; s4 a( K( b <statement sequence2>;7 L" T% d: R- y, G# _' W' }0 n
else
+ V& b8 w: m& }+ G6 \- u. u* G7 a2 k <statement sequence3>;
4 A* C: j# i; U9 A% b end;
; g9 }& x) U) \* \' p/ ~3 E如果分支比较多,用:/ m4 |: \$ G& \" K& R
inspect <expression>
! D7 |% _; J: `" K' q/ G4 X7 n# e when <constant_list> then: f/ f0 T6 \1 m4 d
<statement sequence1>;
* G. V. e2 y/ r; Y* D when <constant_list> then/ g$ `8 n$ A# U& Q+ W
<statement sequence2>;' y% B0 I# Z, L2 F0 [
...
! U3 G, j# D5 X8 s, n else* a& T' j- k* M+ f @. |9 P
<statement sequence3>;
4 M- T8 ~# b: A" l7 ?$ j5 Yend;) ?5 i' f! n3 m# m7 T: j
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2循环语句
; M- c+ ]$ @# m! z) \ (1) from <statement sequence1>5 p) f* e2 F1 c% x
until <condition> loop2 B% V. `6 ? N7 s/ ^) a5 {
<statement sequence2>;% O) E+ Y2 K$ ^& L2 }: L
end;
# y2 I3 s- G7 U6 B (2) while <condition> loop6 o4 i0 X# R9 {3 L4 l& M) G0 o9 i
<statement sequence1>;$ T# k( `' q$ P( \2 }
end;
3 t! N) q* C! H( r1 _ b1 h (3) repeat 4 t7 {" i. I7 ]$ m
<statement sequence1>;
5 Y% ], |6 o6 ]8 j: I% W! X until <condition>;
9 r! |' [; B5 j: E1 M* x" U; k (4) for <condition> to <condition> loop3 m5 [ A9 Y1 O6 d! D& B& s
<statement sequence1>;1 P" O7 ?. i1 W6 m, F6 Z
next;
/ {! J. Q7 c7 {! I7 @) o4 X3中断语句
0 A0 d2 h" ~6 I) T% ?8 L) M waituntil <condition> prio <integer expression>;# D, ^2 z6 I: m
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以上为常用的函数!. B' R$ |* T. P8 v- A2 |1 u( A
还有很多,如有需要我把资料发到你邮箱里 & z; P: Y7 m% R9 Z
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