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发表于 2012-11-13 08:48:12
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1判断语句0 F6 J1 w/ i; z! [
if <condition> then. L$ }( }; y. @2 U) [
<statement sequence1>;
8 y7 J6 R5 o) u( v elseif <condition> then
: K: l/ R* C- i; z- N- z4 e. k <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
, e' }0 `- x- ]7 T" W/ r! | inspect <expression>
! M) F- Y4 S" W" r when <constant_list> then
; z' z4 b# y0 m( I <statement sequence1>;" B. u7 U* U9 }$ H G: h" l
when <constant_list> then0 s: B) g- \+ x- ^
<statement sequence2>;, e* p& C1 V/ C! }
...
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<statement sequence3>;) t5 a2 d' V! o1 j
end;. e) m- d' \* @& p( R
6 q( p7 B9 J3 V* Q8 }% {2循环语句
- F. K/ |6 H, M/ g (1) from <statement sequence1>6 M7 v( |' G) P3 p! D0 L
until <condition> loop
' m |( o% P4 o% y <statement sequence2>;+ v+ O. ?( B2 b
end;
; z7 X3 w8 W" R5 h- c# j8 p (2) while <condition> loop
" ?8 x4 `" A _* }8 [ y% K <statement sequence1>;: G+ H$ c7 S& y0 \- L7 \! ^
end;- P, `3 K9 T1 o& O+ B: M2 j
(3) repeat
! {& ^1 B) ]5 ]8 b3 G: K <statement sequence1>;7 ~( t3 ~( w7 M9 k- o8 }! y
until <condition>;
. `- @& S' R/ R8 j- U, t' t (4) for <condition> to <condition> loop
: X: J' b7 e+ R: `" T( D <statement sequence1>;
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3中断语句- x& \8 L E6 m5 R3 m$ _* D
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
: }# I. I+ |- O7 [5 p( G还有很多，如有需要我把资料发到你邮箱里
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