|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句1 [2 M! c" }7 Y9 X0 a
if <condition> then& [0 t4 A! g9 s
<statement sequence1>;6 U) l4 T4 p+ K) s, j
elseif <condition> then
8 p) U' [) Y5 g: y# F3 N <statement sequence2>;
# [/ R1 r5 W. _9 ^: L/ I; i else
: `, G1 z' u4 ]% O/ c <statement sequence3>;
) H# }. Y: n8 d* q" ` end;
) ~; r& k+ ^: W5 v如果分支比较多,用:
' s0 N: F5 D: Z7 ^( r+ w inspect <expression>! |7 Q( E+ r& r7 p" s9 p2 P
when <constant_list> then
2 C+ i, V5 _: @ I: @ <statement sequence1>;
; F2 [1 }8 H- K" [' S/ x when <constant_list> then
; {) \9 N. S$ o2 V. Y <statement sequence2>;( h8 q) C0 m% ^: E9 d9 m9 @( J
...2 O# K) d0 g/ D$ L
else/ ?& [7 p" \' U6 H
<statement sequence3>;
6 r: H9 D$ L1 D/ ^& Yend;2 `+ k2 T7 z# D( e$ Z- [( u
# Q4 G5 ]* \/ I; V0 n# n
2循环语句8 Y: n+ D) L1 K1 M
(1) from <statement sequence1>
) \, p- s( E+ L. L$ x until <condition> loop
& N t# W' D+ V+ a( K( ~ <statement sequence2>;0 C+ _& \# I: g/ T2 e! w- N+ `
end;0 [4 ?( p: U( m& m; ]/ \1 X# x
(2) while <condition> loop
( t# B3 ^, a2 O <statement sequence1>;3 ~8 d3 t: l4 e( h4 t- r" ^
end;' r) @2 B4 H: d6 t. u" l
(3) repeat
/ J7 w+ ^$ v8 H% ?$ u) d# V6 W <statement sequence1>;
( T( i, t# X7 Y: @ until <condition>;5 g$ k" t# ^( e
(4) for <condition> to <condition> loop8 p1 M8 m# ?( B* j/ O
<statement sequence1>; c) j! B. @, i& p* h* ~4 m; @4 s
next;
! d3 ]3 t6 N% I# V/ s+ C3中断语句, w9 n6 X1 C/ h8 k% B& u9 N
waituntil <condition> prio <integer expression>;, z; H+ L9 B! O* {, |+ I! }) K
& O" q0 g2 M' W; t! n
2 ^0 u& E3 ^; v+ i以上为常用的函数!2 U }( T- N" r2 a
还有很多,如有需要我把资料发到你邮箱里
2 Y5 W, P! b; j3 X: E0 b6 ~4 y7 b# A3 h5 t$ r& w6 _
( T1 L4 P7 F3 h2 A5 s6 u6 k8 C% G z( h% q+ _* A6 Y. V
/ A1 a2 d8 g. C4 n# M* R, R. z( v/ U& g
. a& |( X4 A/ |9 X# }
$ U& y- n3 f$ q$ a
7 b6 E' n( Y3 `4 ?# B8 H& b/ Q& ^& M0 z3 n! G! k9 Z! j7 p% |4 L1 i
Q3 f3 r9 w7 k+ G |
|