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发表于 2012-11-13 08:48:12
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1判断语句& `5 r' x9 ~( K
if <condition> then
- o! c$ n H: z0 I1 n <statement sequence1>;% E5 O$ }& C- `- O' r9 d
elseif <condition> then
$ _( H% s2 a9 ] <statement sequence2>;
' M* m8 G5 T& h9 C else
G2 p# W5 R0 g- k8 v$ F( { <statement sequence3>;
' a: T! _7 ~$ n# i& i" }0 j end;
. E' N7 Q8 ?4 k; z& {; L3 K如果分支比较多，用：
, z$ C( _& x: z; w6 X inspect <expression>
0 l: `3 h7 R; N/ K v0 ` when <constant_list> then5 r) F. ^9 ?; ]0 B
<statement sequence1>;: D# m b0 u% ~; G
when <constant_list> then
7 u! e; c `( m1 ^4 Y* w" R% a <statement sequence2>;5 g. c6 p2 {7 N" }' _: H
.../ @3 P2 P" q; e4 _
else
5 F2 v8 L* N) k. w0 d$ u& d. U! k <statement sequence3>;4 J+ H3 S) V0 w" C/ X
end;
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- Q0 U/ K. C4 O( Y; A4 o6 l2循环语句
: }: O4 q& m2 a6 P (1) from <statement sequence1>, J k3 B- D9 B6 s
until <condition> loop2 M+ C3 M4 q% D& L
<statement sequence2>;
2 x8 g* i/ D, e8 U7 z2 `% l end;
$ c I% f7 \3 k1 E/ V) }1 G (2) while <condition> loop
6 U+ y9 w+ X" E2 U- n* s5 j, I! a <statement sequence1>;
# o$ E; k( W0 n" j; ~$ A! r9 g/ q end;
* p! L$ A9 q/ N (3) repeat 4 x% T; Y0 R' ?' D3 W+ ~) u8 ?
<statement sequence1>;- f8 ~5 Z5 R+ N, ~5 F, V9 t
until <condition>;
' a% Z( ^5 W0 Q4 { (4) for <condition> to <condition> loop- j( }$ U; M2 S8 b/ V
<statement sequence1>;
, Z4 t0 e3 ^- C" b. X9 h next;/ W3 r8 r8 H* j2 d
3中断语句# y% M9 g7 a) R* u }6 u
waituntil <condition> prio <integer expression>;
( L* j) ?0 B4 x; P# D& s+ R' ]- s0 K. O: w" K8 z2 p1 g5 v: _, k
. n/ O' k' n, U以上为常用的函数！
_. i. N8 m- f0 A/ m5 y还有很多，如有需要我把资料发到你邮箱里 # n/ w( s- y2 D+ o$ `* U% D
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