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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
& c) n* e7 a$ ~2 J if <condition> then L* ^/ f0 M- H; V* n, j7 {; z
<statement sequence1>;
5 v) b( _3 q7 p. X1 w' ~1 f elseif <condition> then
2 ]" b. E8 g4 }/ | <statement sequence2>;
! m& X1 \1 S$ J else 9 f( Y, K6 v2 q. ]
<statement sequence3>;
2 O0 E# H0 _% O; [2 Q8 A2 } end;' v3 O7 {2 L6 V/ g3 u9 @$ b! y
如果分支比较多，用：
& X& M, f+ i4 T1 {5 C1 `8 t G inspect <expression>8 B, b9 j, H/ \4 r9 x5 V3 E5 J/ |
when <constant_list> then) {% u0 H6 Q9 M; M* l9 e( r; Z$ A( M6 E; J
<statement sequence1>;
# h& @5 s ]7 S0 J when <constant_list> then, M e$ k) o$ j5 R1 B
<statement sequence2>;
0 y( Z- I* h3 r5 t3 \) N) ~3 k ...6 z- W3 k9 I) z& y, i6 W7 ]
else: n+ [9 y- T* X# b7 w. i+ _
<statement sequence3>;( U& N2 n, n' E7 w; y( ]1 F
end;+ l6 d, L! F2 e+ L) G
J" B$ ^! P8 I2 V. V" Z2循环语句0 \) z* |9 J1 I' N
(1) from <statement sequence1>
! h. ]4 d$ Q; q6 ?! Z- h until <condition> loop
# }! V( x* P* e" Z7 z1 H$ d. x' H <statement sequence2>;
/ l9 w/ u1 J* O/ H end;
$ Z/ i# ?& n0 P* g7 Z5 x% J' ]3 q (2) while <condition> loop! Y3 Y, o. x. [' z2 n! r
<statement sequence1>;
/ I0 N1 @6 W1 y Y# h2 W" P end;- p4 F; b2 ^" Z9 x$ V2 x/ C
(3) repeat
- t* W8 W; D# |& q- K0 F% t( L <statement sequence1>;
6 W+ k. ]1 J( m5 j until <condition>;
* _5 Y c! E$ w( N7 V* {* F (4) for <condition> to <condition> loop
8 O8 R0 T1 w4 p* c <statement sequence1>;
2 F2 f. \- c9 A Y" g2 R( b; | next;4 c# d& T- Y9 l6 @9 j3 u
3中断语句
% l$ I1 A# n( Y waituntil <condition> prio <integer expression>;
+ h( O4 `* N8 X! g4 m
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$ m( ?# x; v4 A/ Q' b' U( C5 r9 V以上为常用的函数！8 @; p! j7 P- ?- Z: H
还有很多，如有需要我把资料发到你邮箱里
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