|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: g6 x% b, p$ k" w' i) }/ b if <condition> then
* }) } ~& \# k( x/ j1 P <statement sequence1>;
; ~. s z4 ~' s- @, G1 t& j! v elseif <condition> then% j5 G6 q- `0 z9 Z: I, n
<statement sequence2>;
; z0 H: O/ H! ~, x else
5 D# |7 U+ q4 I- x. b! w9 @0 n+ M <statement sequence3>;
3 f8 k0 l( ?& {* Z' O8 X' ` end;
: Z, D1 K/ b" ~1 R* ?) J# Z( M4 t如果分支比较多，用：
4 U! U& v R3 Q& v inspect <expression>* x9 n# ]5 ^+ k& x. d
when <constant_list> then
* A/ f$ n* Q, O' G) E0 h <statement sequence1>;
% V8 ^' z1 A* ^4 h7 w& l when <constant_list> then( v' j5 }, {! @5 m3 u9 s8 L
<statement sequence2>;
+ _2 a# Y D7 f, C8 }: K ...
" B2 Q" d/ O# g# Z( L else
- \8 I/ b0 Q) M5 J5 g <statement sequence3>;1 Z, s% }" V: d
end;+ H B z0 e/ z9 L( n4 Y$ v' ~" J
) j" s' B# y! M' P3 E# G, c. C6 z
2循环语句* z2 U( a" U- N1 q3 I: T% g
(1) from <statement sequence1>
) m- o: b( }7 v3 m$ S0 w! O: N until <condition> loop7 r8 G" Y- k0 Q: D
<statement sequence2>;+ x2 l% |+ L B/ c( \
end;: H4 k! j1 n0 J0 G/ z
(2) while <condition> loop
5 h) O) J0 c; _9 q: \# S% T1 e <statement sequence1>;
. J' m) Y, h% [, H7 f. y end;# I2 l" @0 H7 }2 E$ a
(3) repeat - k: ~. w7 ~+ w$ q) q4 Y d9 p$ G4 n
<statement sequence1>;
7 ^8 I- m) h8 D* ~9 g# ^9 r- G until <condition>;
1 v% m* \$ S" [+ c4 v (4) for <condition> to <condition> loop% o; k% q; i$ a+ |- }& F
<statement sequence1>;
) S$ R' U( ?: e- J% g next;
8 Y6 H, m8 r e" B+ F3中断语句
( `7 L* |& f2 m% `% u# J* \ waituntil <condition> prio <integer expression>;
/ j: x* n9 `/ @
5 _/ A9 E: z3 I: L5 J b# a. j( i$ y) f6 q( O. t8 V
以上为常用的函数！
5 k8 S6 v- [! X# | ~# e7 W# h! G( a还有很多，如有需要我把资料发到你邮箱里
7 K% I- @* u3 G
: j+ O& @$ }& Z% Q) H3 Z1 B! q3 [$ d/ s
7 d) I' H" }- l& N 9 C1 F7 T; a( H- C/ `, o" A& @
7 R5 T$ C& \& u; t. H/ c* l; w j P+ ^4 O0 `( |: L
4 w/ b( I8 b! L! W& R! O4 _
8 ^! X+ o7 Z4 q/ t6 _5 ]( v
$ P G9 @: Y$ W1 Z* W& a* Y
1 V1 \( _. r( H( L' ]2 R; P, ?; n |
|
[复制链接]
