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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
& ^. q4 i l- U if <condition> then
' J: J5 ]5 O3 ~+ O( }7 S2 W. ? <statement sequence1>;
! m. p( Z: ?3 L" g( P9 O, Q" F4 \ elseif <condition> then
+ G8 Q) z. c& Y( Q( W <statement sequence2>;
# [9 O4 E& s$ J, Y" U else
9 X9 g% V5 m. v4 x <statement sequence3>;% }7 z5 {2 h8 Q9 }% Q1 H) o) u
end;
& k" o- k* b. g+ a5 C! S如果分支比较多，用：! t) Y3 |# E1 C- d! j) e- K
inspect <expression>- ~) c1 b) w8 B: z
when <constant_list> then, {+ c1 q( E" V4 q5 V7 j
<statement sequence1>;8 C0 c! Y; I1 T
when <constant_list> then: i2 @# X0 T& q* ~9 \0 T3 {( y
<statement sequence2>;
( `* p$ N# y* F; h* Q/ V4 n ...
) V' [, Q3 E6 g2 R7 ~2 r$ d9 R else
, p! }0 _5 ]' N <statement sequence3>;# u3 v' Q/ ?: B- i+ C t
end;8 a. a! i! l/ G
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2循环语句
6 A8 c& x7 L; S8 w. U( e0 F$ I. n (1) from <statement sequence1>+ l4 E V ~8 q! f
until <condition> loop5 \. L5 O" \1 C
<statement sequence2>;
* C. e# ~6 u6 H8 b7 g- G end; p# [' y5 v+ I- }
(2) while <condition> loop
- t9 ~& J5 \4 s* O/ C9 g, ~" h <statement sequence1>;3 }4 x7 a S0 N
end;) K2 Q" O, g1 J% n) l5 N/ z
(3) repeat " C/ ~( e0 u& m2 @
<statement sequence1>;5 D& E# O$ X' q) J8 G! v2 [+ X0 X
until <condition>;
) h) [; L6 ~& ~6 {) u3 d7 I n (4) for <condition> to <condition> loop6 T! O" N& }5 u% x8 ?* V1 J
<statement sequence1>;
} i/ _5 ?' q4 O next;
: E! Y! p, S, q( | W3中断语句+ R' c' t1 V( S w& a& o) E& f
waituntil <condition> prio <integer expression>;2 n3 E9 p8 i9 O
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以上为常用的函数！5 P- C0 `% H! h0 t( `' U
还有很多，如有需要我把资料发到你邮箱里 + I! w6 c- C5 K/ b
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