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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
( j% g. y0 y' `) e n if <condition> then
' m) d% V2 E* h <statement sequence1>;' I# I( }0 X, u* t2 `
elseif <condition> then# V2 w; B7 x) T2 J
<statement sequence2>;6 S! z. e$ d9 o! h# [5 ~
else
3 O1 K. `% O1 W$ H( f0 T( Y' e) Y <statement sequence3>;
# Y' |$ _+ G7 [' f; u) z, y& Z) r end;& t2 ?0 \3 l. G* B; I3 n! W
如果分支比较多，用：
+ Z0 M6 c# b4 x7 K; ^ inspect <expression>6 N/ x1 S* N# e- T; \- S
when <constant_list> then4 y& \; I E8 B( C
<statement sequence1>;# k4 L6 B8 E6 _6 f
when <constant_list> then
( a3 {; b( l: B, b5 I' r <statement sequence2>;2 P! R7 U5 F$ c: ?
...
' O/ Z* K5 f% A8 S# V; m$ Y- d8 y else
( m; L4 P8 V2 }# W: k! W* h! C <statement sequence3>;
% u* D+ V0 _$ E2 ?- Nend;
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7 R' N% ]' `$ k: q b2循环语句' r' v- n$ q; k, E0 l7 j
(1) from <statement sequence1>
2 a6 T" Q3 {( R, E8 n' v6 _% ^9 Y until <condition> loop
& S8 |5 p0 O2 h! U7 i5 Y0 e <statement sequence2>;
! q3 o2 H/ r2 `( f: M% P! U, U! S end;
3 O, u5 o2 L# F( P' L (2) while <condition> loop
# \) h9 O2 j4 Y M <statement sequence1>;5 d3 `9 @6 i1 c( i4 E
end;" r1 N" K/ D# |$ ^+ J+ S/ l8 \. w
(3) repeat
$ n V8 @! P, Z2 B; d <statement sequence1>;& O& @. A, R" D8 {$ C( c
until <condition>;
& G1 _+ ?& O4 h' I' _1 ~ (4) for <condition> to <condition> loop
+ `% V! `7 y2 l0 p; I <statement sequence1>;9 w- s/ g$ o. _- m0 \8 G9 Q! A
next;4 k# h9 v) s; Z- l- b+ b0 W7 a
3中断语句
$ T1 M4 U' A. M( A! W3 j4 Q3 {. n waituntil <condition> prio <integer expression>;
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以上为常用的函数！' Y& s+ J" ^- `. z2 a) m* U" d
还有很多，如有需要我把资料发到你邮箱里
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