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发表于 2012-11-13 08:48:12
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1判断语句, U# c! m) m; h9 t
if <condition> then ]6 R% m& ]8 w( S( D
<statement sequence1>;
" D) r: O+ o0 n6 {: s& b elseif <condition> then
- f! d# k8 `& L% o- r; J <statement sequence2>;
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7 p( N1 T( P/ h, R" ?6 O <statement sequence3>;) R$ m$ I9 s4 |% H) \4 A' e" ~7 T
end;1 {* a0 ~; b3 w) I
如果分支比较多，用：' l5 R: Z, T; S" ]7 {/ S) K$ @2 p
inspect <expression>
6 \) d1 y- Z0 b2 A3 g" k when <constant_list> then
8 ^# f' j. I, D6 O: J* ] <statement sequence1>;' }& g7 a2 v+ {. d$ I6 l& `/ l
when <constant_list> then
' ^' y; e* W5 r7 _ <statement sequence2>;3 J* G- G( i) D
...- E6 H) u* d1 L. Z+ Z5 Y$ m$ G
else$ {0 v/ l7 j2 l$ R1 ~6 U
<statement sequence3>;
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2循环语句. B4 X: |$ J1 U( S' v
(1) from <statement sequence1>4 A) K7 F/ g1 U* i' R7 D6 w( n# t
until <condition> loop9 O# o5 J0 P- G' N
<statement sequence2>;- F# Y7 ^0 {. p
end;) f2 t* I# w* i7 V
(2) while <condition> loop& t+ s. r" R1 j" c; r) U. J) m9 D
<statement sequence1>;
8 Y( a) m: L! R& K& C end;* {% S$ b! o1 D/ W Q" E' ]
(3) repeat * i' h6 q2 ?" x5 h7 U& w
<statement sequence1>;
! E# I9 O2 R& W" ]/ W7 y- B until <condition>;' `3 Q; P4 f$ ~# l9 I' a- d; |
(4) for <condition> to <condition> loop
) u' ]& {, L1 [5 K- F( W* E <statement sequence1>;
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3中断语句2 B! j2 V# b9 t2 N: I# f
waituntil <condition> prio <integer expression>;: d. Z+ A: F. u7 r+ U, m9 Q' P1 w
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# v! x9 o5 J. r; _以上为常用的函数！6 {0 X1 [; L3 K# M3 t
还有很多，如有需要我把资料发到你邮箱里 3 f5 r7 I8 h% E0 Y5 Z
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