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发表于 2012-11-13 08:48:12
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1判断语句
: @6 x. v8 x6 J* ` if <condition> then3 a- R8 Y6 V' a
<statement sequence1>;
( d! k9 g/ p, n6 G2 a y elseif <condition> then
/ h. f) V1 d% P) C+ b K! r <statement sequence2>;
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<statement sequence3>; B2 |, I! c4 E
end;+ L8 }7 Z+ a4 A. w* v2 a1 D$ w5 L
如果分支比较多，用：
; \$ B& T+ R) p5 m8 y( z inspect <expression>; f) ]5 m$ v7 E
when <constant_list> then
; h5 [4 y. n% a, t <statement sequence1>;8 k! K o6 V1 I5 F! O# B8 R- V# b
when <constant_list> then
$ F1 H9 Q8 B7 `+ V* B* x$ V <statement sequence2>;
8 s5 Y; w' L) T: a2 X ...
1 Y9 S% N+ m. x- I7 ^& y else8 ~/ @/ U" ^# x
<statement sequence3>;2 i8 I# H. @7 _& z% h9 B, I; @
end;
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; d9 B' i5 A, z1 p. {3 h2循环语句
$ i6 V" |: A. _1 S0 q (1) from <statement sequence1>
& s d" Q& ~* e l until <condition> loop
( a9 W# f; @$ z2 G <statement sequence2>;' O% l+ G: V+ I6 p8 {5 o
end;+ {5 ]% B7 ?- [) M L
(2) while <condition> loop) g5 A: y" f3 m+ A: C1 r5 I" f
<statement sequence1>;- C0 }! n6 s2 G
end;
$ {8 [/ [" K' _- k; o (3) repeat
5 O1 m7 f3 t% z' | <statement sequence1>;
4 [7 d( V3 y. E9 T% n3 M$ m until <condition>;
; n- L6 }8 e% h0 j (4) for <condition> to <condition> loop
; i( j# w6 Y+ R7 B8 Q! ^1 Z <statement sequence1>;
; N" D& m1 r5 y6 `+ Z5 K# h next;
% ^! K5 K2 P L( H! @3中断语句) {4 c, T+ m( h" d7 l* H) }
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
- z2 n0 l y# \0 w+ m* l1 [还有很多，如有需要我把资料发到你邮箱里
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