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发表于 2012-11-13 08:48:12
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1判断语句$ g5 f9 Y* c2 C4 e( K
if <condition> then
* n, V: {1 y$ W1 a8 d X# `" A <statement sequence1>;# Q" M! ?2 s8 `0 u! ? z
elseif <condition> then
8 S2 h2 Y8 J* \" u' X! q <statement sequence2>;
* P. L+ Q& e" ?4 u( ]! m else 4 z7 n* ?8 c! k+ Z9 [
<statement sequence3>; k% N* s$ f# E4 N8 j6 s! j' r
end;
# A! S$ `9 P; S5 a* v% g如果分支比较多，用：
$ g, Z1 e6 g. ~( F4 q, z. q inspect <expression>
7 R( O. a% p, U% R when <constant_list> then" S( g. M. a' j3 Z+ x& C" t$ W& C( @
<statement sequence1>;3 ^# m# S2 `0 w1 U3 n# ]
when <constant_list> then
7 \, x" ^- K+ W& J; Q <statement sequence2>;
7 D' }$ r9 E. N& v$ R! M- r ...
; m/ {* G- S5 a- e% W( V) g* } else
$ U9 r4 B$ q$ n& m0 U <statement sequence3>;
' \5 v1 o; t8 \1 Tend;& z: E4 U$ K7 G# p4 {
3 C0 A4 ?) T7 y1 r4 \2 T; W" v2循环语句
0 ]5 c. v8 B: d, e$ x# B+ | (1) from <statement sequence1>
$ ], |0 [! G0 _) i7 W until <condition> loop
+ X0 `; T6 D; I( ` <statement sequence2>;
/ L/ E$ a2 Y6 S2 h2 T" m; P8 K end;/ e) G. @+ v! I$ `/ U$ `
(2) while <condition> loop6 V8 Q4 {" t. b
<statement sequence1>;- J3 r9 d; U6 ^3 `, [7 l$ V7 t
end;: Z" n# d" L5 U# g+ f: c% ?; [! `
(3) repeat . z( B+ x: D9 N" ]$ n
<statement sequence1>;
! {$ m( f. x$ N9 a1 C1 N until <condition>;7 u8 W) ~# u8 Y+ s4 V
(4) for <condition> to <condition> loop$ O- i6 L5 R! C- g, N) v
<statement sequence1>;- X Y5 ~# g+ H$ j2 q/ p& r
next;
+ T: d M3 z* p# w3中断语句: e3 \* n: m+ ~/ f8 J) Y2 {
waituntil <condition> prio <integer expression>;4 s& c; e; s2 }+ ~2 L' ]! B0 |5 z# y
5 a6 N7 S' y1 T6 e$ c* [! |/ C% T/ K# {! n
以上为常用的函数！
7 s' r0 m) _2 L! O# T, K' d/ ^还有很多，如有需要我把资料发到你邮箱里 % d, c2 C; }/ D% ]
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