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发表于 2012-11-13 08:48:12
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1判断语句
6 E8 O0 n9 f& j: l2 { if <condition> then5 x3 e! N9 I, C# g/ n4 v$ P# ]5 [' R5 q
<statement sequence1>;
# s% ~6 Z' s |) h3 Z1 C elseif <condition> then
3 L/ b7 Y q4 u5 C2 Q <statement sequence2>;
) x; K0 d( `7 X2 @) E9 i9 n& Q else
* f; v3 U" Z9 ]7 Q <statement sequence3>;5 h$ g* r! h5 b7 L
end;
; u5 |3 V& l/ e1 a4 N* J! Z" z如果分支比较多,用:$ Q* q& F$ D9 M5 _8 F) s( m
inspect <expression>9 H" Z- N' x5 b) Q* ]" M5 R1 m
when <constant_list> then @9 F* J' P4 Z9 g8 X6 v4 K
<statement sequence1>;. A: G" k: r* I4 ~, z/ t
when <constant_list> then' U; ^. m) `6 L I0 ?4 B' s2 [& Z
<statement sequence2>;
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else9 f5 T, k, a. ]6 C: n
<statement sequence3>;
, X w4 j) o. Y9 K: C* ]' Uend;
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1 w: u* y* I8 X% z6 A/ J1 R2循环语句9 d" U$ h8 a0 l# y
(1) from <statement sequence1>. Q/ P+ r: u! y* K1 @
until <condition> loop7 ^% c& Z' G U. j
<statement sequence2>;! _: Z" i* s0 q1 ?3 W: {! W0 |
end;8 W& k; d5 o! A3 [* D' s
(2) while <condition> loop9 e4 C& N6 j$ q6 W5 M# }. T
<statement sequence1>;5 f0 r$ D: M* B: |3 k5 B
end;' g0 R ~) z4 Y, T% {
(3) repeat
2 N' u/ Q5 @5 _+ G <statement sequence1>;
: a0 m4 A B+ K% g* _: Y until <condition>;
5 a- {* g. m5 \. q+ Z& @ (4) for <condition> to <condition> loop" i& k4 a5 W/ c+ h$ ]
<statement sequence1>;
; w9 @- N7 @; X3 d# | next;
8 ^ A8 ^$ A E0 n% N( G3中断语句. {6 p, \# i4 i& m6 k1 r+ Q% Y/ V
waituntil <condition> prio <integer expression>;$ B b/ Q& E& v; C+ o* _
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" \! Z- I1 S1 ^& B3 R以上为常用的函数!
9 l- K3 R1 ^$ g0 I1 A还有很多,如有需要我把资料发到你邮箱里
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