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发表于 2012-11-13 08:48:12
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1判断语句
$ u( w- v) z. y! G, R' m4 J. n if <condition> then
# E3 ]2 b6 K; ? g6 P7 s <statement sequence1>;
1 s! h* C# X& z' Z6 C3 t( B8 X* a elseif <condition> then
, }9 w7 m6 [1 c; E <statement sequence2>;
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<statement sequence3>;1 y7 G; B4 v7 Y8 G
end;! ]$ C$ ]: y6 ?1 m
如果分支比较多，用：
9 I1 D* s, W& R( Q8 Q inspect <expression>! S9 H0 i7 D9 K' B t7 P2 q. [
when <constant_list> then
" T: i+ f& v2 O; w5 b <statement sequence1>;
- z* ]8 b+ o/ w7 [/ r( n6 y when <constant_list> then! I# Y3 i& P2 h" J
<statement sequence2>;
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else
( U6 ~* x7 Z: d8 A6 ^ <statement sequence3>;, p9 W% D1 w7 U( h" i/ I) n4 i7 K/ M6 D
end;
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2循环语句& J1 n$ F: D _; {1 m N! `3 ], G
(1) from <statement sequence1>
' `- m0 G% H( E! W+ F# r until <condition> loop+ `8 \. ~% z5 o
<statement sequence2>;
7 I l. q, S# I* `2 T+ j end;
9 x e/ c( [6 Z (2) while <condition> loop
: ]5 u& G( D9 |4 U <statement sequence1>;9 {4 ?& X# w; r. c& D. q
end;
0 V8 ~% x9 F8 n0 T2 q/ e7 z- Y (3) repeat % Z4 |! T' I& _4 @1 U, J
<statement sequence1>;
2 W8 j' W7 Y$ [. q until <condition>;+ {. v! m* S; _) y+ {
(4) for <condition> to <condition> loop; K" `4 j$ J# a% t
<statement sequence1>;9 T! P5 V* {" Z8 a+ l6 A7 i
next; `2 ~& r) r1 B# m
3中断语句
9 K# T* A+ N8 f% h( x+ d waituntil <condition> prio <integer expression>;
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$ J, D& m! ], n. }以上为常用的函数！7 ?& u# t# @2 \ m
还有很多，如有需要我把资料发到你邮箱里
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