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发表于 2012-11-13 08:48:12
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1判断语句
. u. D+ G* k; }4 g* r# o if <condition> then
2 v( u5 y6 }$ p+ D% _ <statement sequence1>;
5 x+ H. S4 _7 O9 S0 Q/ L2 d elseif <condition> then
q# t8 y/ Z9 M6 W& j- G7 r5 B <statement sequence2>;
; d! y) B4 S i, z8 k else 4 _& Y0 g' x& d) x
<statement sequence3>;
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如果分支比较多，用：+ k" U3 ]1 h% s5 z$ w5 R) f7 _0 C
inspect <expression>
+ W; J. \5 C5 E) f6 \6 X. v6 s when <constant_list> then
2 @8 F" i& S/ G/ B. b; h, G! P$ o <statement sequence1>;
# G) _$ e; M! E# x G C& O5 l when <constant_list> then& C* _( l. g$ ?* _; H
<statement sequence2>;
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else- O' t% ~0 l6 z
<statement sequence3>;0 a% V& x8 b+ _; i' m5 Y
end;
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6 _' Y: U V( d2循环语句5 E! Z8 K2 t; ]5 |6 V7 ?5 U s. F
(1) from <statement sequence1>
3 e9 P( s! T2 ~. @1 `! \" s+ F until <condition> loop; s' z% z7 T& m: {
<statement sequence2>;
4 i0 }. e, v* x5 i; K8 \; R& k end;
! Q2 P7 o0 l( v! }3 ~ (2) while <condition> loop
& D: j" y" m0 \2 U <statement sequence1>;
1 e& ]* U3 t1 ~" _ end;0 |" M* \1 W! _; C f4 c/ s' s
(3) repeat
" o& `9 v. i6 ]* Y! S$ m+ @( c <statement sequence1>;. X" ?7 T$ A4 H) @$ U- c
until <condition>;
9 ~+ T: R' N3 b( o- E# r (4) for <condition> to <condition> loop( O* `) ?7 k( @+ D
<statement sequence1>;9 m! P8 |+ u( A
next;
* Q, Z) k0 J9 g8 ?; B9 j2 q9 X3中断语句7 m. h O+ s) _/ T4 U: _$ Z
waituntil <condition> prio <integer expression>;
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- x: w+ P$ @ r) u b. [! V0 q以上为常用的函数！
6 q' u0 G- H C还有很多，如有需要我把资料发到你邮箱里 3 a4 \/ _' O }7 L) Z
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