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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' R" V, R0 q4 \% W
if <condition> then
$ \% o; x/ ~9 {* S( a2 e2 M <statement sequence1>;- g( d; I" v# |4 ~0 W5 ^# w( i
elseif <condition> then
$ L+ w( [) c4 s, Y1 p4 F# T6 r6 p' @ <statement sequence2>;
; ], d* G2 Y+ `, x8 \5 V0 Q( b else
7 }6 m8 Z) p6 p% ~ <statement sequence3>;* M$ j( I- U& r8 V r( j
end;
! [3 B" q+ F) U) k& C7 g" ?$ d& R. g, S如果分支比较多，用：
! X$ c, h, v, C: E inspect <expression>- ~9 r2 ~) v: L3 r$ ^
when <constant_list> then/ P7 O- V: W# @' P2 U% O0 F/ I
<statement sequence1>;, t7 A$ `- r5 U7 |5 U2 ?
when <constant_list> then
6 J5 Z+ J( z# H' ?8 h1 G( ~ <statement sequence2>;
/ D, x( M6 H" ^; n4 ~, ] x! z ...
7 W. J, D2 m6 M9 `& X else
8 U# _9 \9 O: d. M' e& ^ <statement sequence3>;
* f% i4 y$ h! Uend;
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`; H, N' z- v; o# t( e% H2循环语句
2 w. }. m4 r4 k, }. V0 K+ w0 g (1) from <statement sequence1>) y [* P% l' o& h; k6 e5 u3 B) j# \. Y' D
until <condition> loop7 y' I" U/ _) Q6 W7 i$ J1 m! ]
<statement sequence2>;6 J' i9 Y. l0 p7 s+ ~" K$ O
end;
" |/ r$ I; R7 `% h (2) while <condition> loop
4 @+ u3 y5 K1 V% M" M1 O <statement sequence1>;2 W1 Y' N `/ `/ Z ]& r( x
end;
, i1 e+ K C0 `: D+ G (3) repeat " N) ]! I+ |- B4 A) S
<statement sequence1>;
$ q5 R# I: T+ Y% o6 R1 F) \1 Z until <condition>;- m# u( ^) Q3 J6 K! c, q9 j" i7 B
(4) for <condition> to <condition> loop0 z9 i5 b: c$ a+ c- ~+ S2 z' k
<statement sequence1>;% X7 S; t# {, B. v8 @- @: |
next;( Q# l2 M4 i7 H: p
3中断语句$ K# `7 O0 b- {) J, h i% a
waituntil <condition> prio <integer expression>;
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2 H$ b9 T& b) f1 Z/ ?9 `+ `以上为常用的函数！# u* V/ g/ k7 R
还有很多，如有需要我把资料发到你邮箱里
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