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发表于 2012-11-13 08:48:12
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1判断语句
( q/ H( V# B O if <condition> then
! i# `1 _* `: r- U <statement sequence1>;
: k. |- Q4 W1 Y9 d# a _ elseif <condition> then5 H' w& i. T; j x- ^6 q
<statement sequence2>;+ }+ ^: y3 a6 q9 R, K" c+ c) y
else 9 {7 h- o9 J y5 @& `
<statement sequence3>;
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如果分支比较多，用： R6 y p1 T$ Y" ]
inspect <expression>0 l. h# C/ Q& G; c& U. M( ~
when <constant_list> then
9 s- O5 _7 ?# o( } <statement sequence1>;
5 l. t- N- T- K* S! Z% R$ ~! z when <constant_list> then. w! b- a: y" ~( X% s
<statement sequence2>;, K% S! r: W* A+ x$ D/ e9 {7 ?
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else
/ F5 H! {: U; Z7 [ <statement sequence3>;
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2循环语句
9 T) R& S1 a7 w+ Q% H; R$ f( g' b (1) from <statement sequence1># _. R$ F' X) K4 `. ^
until <condition> loop0 Z4 M, T% `. J+ U" I/ R
<statement sequence2>;, G" x! _/ S r* @- j f- C. Y
end;
9 c' c7 a/ e$ l q' p% h$ m8 V (2) while <condition> loop
$ D) p+ H* y0 @9 R <statement sequence1>;
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(3) repeat 0 F( t4 q% T9 Y* H& Z/ r6 s! V
<statement sequence1>;
$ T# g8 ], m, l- P. {- p& n until <condition>;' l/ |9 J$ y* E5 F d
(4) for <condition> to <condition> loop
) s6 w) X5 G3 m4 G; t6 X <statement sequence1>;+ W3 m* V) r, W4 _2 N
next;
a/ N: v/ @+ B! q8 X( Q& @3中断语句; H \ |- }. K+ F% _6 d. o
waituntil <condition> prio <integer expression>;
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以上为常用的函数！: d3 s3 q2 ?, h1 x( ]. i1 X9 D
还有很多，如有需要我把资料发到你邮箱里 @1 D3 m2 k( M y8 |3 |
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