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发表于 2012-11-13 08:48:12
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1判断语句3 [. d$ X8 V1 C3 n1 N5 B' @
if <condition> then0 M" w1 V' A9 Z) E; ~+ C5 v7 u
<statement sequence1>;
7 a4 ^- D, j7 f; | elseif <condition> then, {$ W4 c7 S! g! l0 c% U# z$ n
<statement sequence2>;/ ]8 R- J6 _/ R q0 v
else
" ?) m& P! E& Q) y: J: r/ _9 k3 v <statement sequence3>; r% G, Q0 |1 v5 h2 D/ P& V \ t9 A; h
end;
- k/ [ c2 l5 Y2 h9 N6 T如果分支比较多，用：. D- i; h8 N! J K5 b6 Y7 @
inspect <expression>
, T* D U( K4 J' Z when <constant_list> then7 ^2 O& ?! m" z# O' R
<statement sequence1>;3 h1 v; f/ u1 @) G+ m
when <constant_list> then
0 O1 J) o' } `, G' G2 l/ Y. F <statement sequence2>;
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else
0 k1 P8 x8 ]! i! W- l <statement sequence3>;* g1 u; f9 [+ p* ?( g4 u% @: U+ e6 y
end;
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# ]1 w5 k# G5 h* c' I( ]. g2循环语句3 B: l7 e0 `7 E2 O4 @" E
(1) from <statement sequence1>
' L* n) W* ^* B0 B: `" M until <condition> loop
( j$ c; e; X& c: o# G) q( } <statement sequence2>;
1 W8 U+ J2 Q0 B" ? end;- ]9 e- m. K( t: p& J
(2) while <condition> loop
* E# D; n( U) k* G8 m$ V0 h1 o$ H4 k" z <statement sequence1>;! S4 Y3 U1 u. {7 S
end;) R( A, v, [) [/ P/ H
(3) repeat $ J2 s3 l5 ?7 B4 e& }
<statement sequence1>;5 h0 B/ ?) \( s% B" j* V5 o+ U' v, [
until <condition>;
" Z& e: M! V( j+ M (4) for <condition> to <condition> loop6 \# e8 |8 ]+ S0 h/ N) _! M- B) E/ y
<statement sequence1>;* X" `2 f2 T1 l5 c) ?2 J* }# I
next;2 A1 k4 r& J' i. X0 [" k* U: l3 P
3中断语句: n7 L9 B' w: ?
waituntil <condition> prio <integer expression>;& Y1 _; A. f) a% ^$ F
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以上为常用的函数！* g6 [) W' J8 J1 Y
还有很多，如有需要我把资料发到你邮箱里 f; D3 T, c! R& }
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