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发表于 2012-11-13 08:48:12
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1判断语句8 k9 ^! X+ W. C) o$ _; ] Z
if <condition> then% y7 M7 w, ^4 t' t' `4 u
<statement sequence1>;
3 v* w1 K) @# m1 S5 V7 w elseif <condition> then
) P7 V" M! u: ~( f$ o" ]# [ <statement sequence2>;8 q, ^* g# O$ i3 a
else
7 V- P4 M+ N" `9 w; g8 J <statement sequence3>;0 i6 `* |3 f9 O. S& R6 p' o
end;, t4 G1 F8 d! i) S; L, Y
如果分支比较多，用：/ N' a+ v! s; j
inspect <expression>
1 Q8 y4 Z% p& k$ b. n4 ?( O/ J( X when <constant_list> then t. f+ T/ g+ Z' c
<statement sequence1>;" |; |) `- y! Y& V/ d
when <constant_list> then
8 F9 z* f" G2 p <statement sequence2>;2 \/ i! f* ?+ I" l
...
8 l2 w! {: ]1 N" y t4 J else, |- K) b& [+ J/ s( @0 M2 f
<statement sequence3>;1 k7 l( ~* |4 X$ _+ @- R
end;: S) G: @0 x# |% `" l7 e$ H' x
* u0 }2 a" c/ y O+ l4 z) Q3 ~( J2循环语句4 l& ]5 T& j- q/ `
(1) from <statement sequence1>
4 N" \1 n9 C+ Q Q until <condition> loop4 e8 u4 ^$ B6 I& ^0 C0 }. W1 N7 S
<statement sequence2>;! o( S2 j( \( A5 D/ m/ |& Y
end;
- v* o, a$ O5 B8 i6 ^( Y( _0 C (2) while <condition> loop
8 w1 e/ m! B& j% [( |, j- t <statement sequence1>;( l* K; N' r. H+ w! R6 F
end;
6 u1 |, h% M# ]4 ~$ c2 L. M (3) repeat
; F9 }" P7 ?1 P6 f0 J. J, T <statement sequence1>;
: m9 ], R& z: \& J/ e until <condition>;* n7 y% H: C& ?' a9 Y
(4) for <condition> to <condition> loop
9 x" c3 l% v3 ?' {* T <statement sequence1>;
. W; s$ j6 e* k next;
7 L/ w2 M2 P' q3 s' s3中断语句! R9 m3 w. I4 `
waituntil <condition> prio <integer expression>;
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2 D& w' ?. h7 C$ b6 I4 p以上为常用的函数！$ m0 o8 A7 ?$ l4 y
还有很多，如有需要我把资料发到你邮箱里
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