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发表于 2012-11-13 08:48:12
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1判断语句1 y8 X' |9 ]7 R. [
if <condition> then2 X U. c- ?" } A" o+ u5 I
<statement sequence1>;
3 `% J, w/ A$ r4 Y8 j' }( F" @ elseif <condition> then
! K+ a; i I# K' |$ d/ b+ J, P <statement sequence2>;
8 e3 O" L' u, d6 v" @% Y else
! o3 s3 B" f/ x <statement sequence3>;
; G$ t6 {! j: v end;
q- ~4 ~5 L4 \8 f如果分支比较多，用：
9 Q. R' `0 z$ n2 @. I inspect <expression>% W, v3 E' N& U, H/ J
when <constant_list> then/ a+ h3 B1 ]) C! J V0 ?8 b, _
<statement sequence1>;- x3 [! R5 R1 U* X* N9 v' K
when <constant_list> then% x7 p/ ] V3 m2 R# g0 Q) L" G
<statement sequence2>;8 ?* s% E7 Z: x$ k
...4 G, L5 P- k+ s& T. \
else
" ~0 a3 x0 s$ ]7 E$ k/ }' x$ l <statement sequence3>;
# t7 v: p% Z7 r0 I7 J6 Yend;
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2循环语句
% p$ U8 u3 I( ~7 W& M) E6 p- J2 Z7 k (1) from <statement sequence1>
- L$ A8 U% X! e# W until <condition> loop- k& |* E4 k; c( `6 |; u3 i; M
<statement sequence2>;( K# Q) V# D5 M0 s9 w; t$ J
end;$ O5 S1 e( C( h
(2) while <condition> loop6 X* x& p3 F7 K: p- H
<statement sequence1>;4 [* v2 R# q% g; l6 F
end;
0 z* U) }- u+ k+ o (3) repeat
; E3 j( B) d6 E- D+ f1 c) T4 w! {, ` <statement sequence1>;/ T4 w' I) S$ _# Q( ]
until <condition>;
- D8 E/ V3 ?) ^: w* k (4) for <condition> to <condition> loop$ m. ^" _, {) C2 _* C
<statement sequence1>;1 j$ D0 m' w- G1 ?9 y( D
next;
& K% r# `4 A4 i3中断语句
6 J' _2 @7 I1 l9 b waituntil <condition> prio <integer expression>;
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以上为常用的函数！, |3 d; X4 K, u5 x3 o6 l
还有很多，如有需要我把资料发到你邮箱里 1 V6 k, q7 k7 u0 s* N% i
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