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发表于 2012-11-13 08:48:12
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1判断语句; a2 L3 j. M* n5 y9 D7 P- v: ]6 D8 }6 s
if <condition> then
4 H$ O0 R5 g" [8 Y9 p <statement sequence1>;
- P$ ` L% D7 N0 e1 d+ f* h elseif <condition> then+ b; U8 o. z3 U. n' r/ @4 m2 g8 c
<statement sequence2>;
3 Z8 V0 X3 J6 I) s/ O else 9 G* E& D& p1 f0 S: v" R
<statement sequence3>;9 w% f, Q4 j) ~- h# b
end;
/ L6 z% n8 m3 y9 m0 Q如果分支比较多，用：8 a( C0 W" E7 b) z' x F
inspect <expression>
1 O* [+ A. h' T) f$ c+ ? when <constant_list> then
2 O8 O. M6 X& A% v5 f) [( }: V <statement sequence1>;) u8 ?) {. h7 U8 I
when <constant_list> then5 W" a- e# e. R7 v
<statement sequence2>;
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else) q& \9 f9 ]3 F) N$ U
<statement sequence3>;" [: v& E) b7 A7 O
end;9 o2 b* N: m" }8 o6 i; C, S
! I; F5 B2 Y6 T. z ~2循环语句* `9 A0 B% ?* O' W
(1) from <statement sequence1>: K4 U& f( P$ B: ^. @+ I
until <condition> loop. F+ R; n0 b$ h$ I0 v
<statement sequence2>;" s G" d. y1 ?$ X
end;
- c; D& f$ g. i' q7 F (2) while <condition> loop
9 @1 z) V0 _( v! `. q4 _5 ?+ g0 A% { <statement sequence1>;+ {4 I! W5 k" p0 u' [, j' Z# r
end;
6 P0 s* I7 G+ S2 x2 H+ r$ i! G (3) repeat
/ z4 Q3 M) A4 k% ~9 p! X. _( d g/ i <statement sequence1>;+ h) A0 x9 _/ K. A' h+ I( {
until <condition>;
) G* X2 z, ^0 J: \ (4) for <condition> to <condition> loop% V! t5 ]! P- n* D, x3 b& _
<statement sequence1>;
7 c) S( Z8 { k0 Q" v/ N5 v4 @ next;
- |9 H1 i% R0 z! V3中断语句
4 w3 h* Y: K* \/ K& z$ |* ^ waituntil <condition> prio <integer expression>;
' ?7 v0 J. [9 m3 \7 Q/ O0 f
2 c1 V; J- v" ]( G/ C) Q7 \
/ M' B* }; L6 Q以上为常用的函数！: X& H' q, V$ w _- z
还有很多，如有需要我把资料发到你邮箱里 - ?% E/ x7 ~9 K# y6 y" d) d9 p) k
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