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发表于 2012-11-13 08:48:12
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1判断语句8 c# Y. D/ b& w, M
if <condition> then, u! x7 b1 a7 A" W( l
<statement sequence1>; ^/ e" w, h" B% [
elseif <condition> then- Y! c; K# c( E' s, H* Q
<statement sequence2>;
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<statement sequence3>;% S- P8 ~5 b0 D' }$ i8 W8 r
end;
5 A6 ~, A. S( G如果分支比较多，用：
' z2 n. m! a6 @$ d; Y( e inspect <expression>2 Y; _0 C# \( P4 u1 H& r
when <constant_list> then
& T6 }0 X' G- u, T$ j <statement sequence1>;
" e: e( k( _: ^: A2 X when <constant_list> then
1 w" |. ]% K1 D; J <statement sequence2>;/ b1 m; `) b3 Z3 i- }" v( J
...6 O$ b3 P- Q# E( j
else
, \; b( l! m/ K" F <statement sequence3>;
# F& l6 k3 M4 Q; j9 x7 ^$ ?3 send;
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2循环语句
( W$ \ u1 r3 k( g& G (1) from <statement sequence1>6 W( j: ^9 j) ]: @
until <condition> loop' n- j! }; p. }1 s
<statement sequence2>;
- q7 }8 ^0 }6 _# M8 } end;) H6 @' u+ y, s: M3 n, o
(2) while <condition> loop
3 z2 E; ?( D: j/ U+ c, n <statement sequence1>;" {9 Z2 J+ U' a, x1 U' G2 C* X2 {
end;3 S5 K3 i$ v& E& y6 ]7 n9 @* A* m7 r
(3) repeat . T5 I+ s) A* Z2 M% ~, C
<statement sequence1>;
) d, a; G8 H7 [( o until <condition>;
1 H% ^5 P" {/ v1 p (4) for <condition> to <condition> loop% t8 \2 h) C% p. u
<statement sequence1>;5 @' F" r# d3 C0 e: \( S3 [
next;
) Q4 p b- r: ]$ T" M1 _! m* {3中断语句9 w$ N; K1 D' m7 D1 A9 U# k
waituntil <condition> prio <integer expression>;
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/ m( ?$ E! v7 d1 T! Z. X以上为常用的函数！
4 Z5 [. `$ t6 K: q$ A6 D/ s, J5 e k还有很多，如有需要我把资料发到你邮箱里 % Q% S0 H; T* u, A O; c( k' C( j
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