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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句" o0 s% H, N1 A) ?9 b
if <condition> then
: a6 f! H) F4 q, a <statement sequence1>;
' b" |* U9 w' w- z, Z# J elseif <condition> then
, k X! w: i0 \+ K2 D <statement sequence2>;
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<statement sequence3>;
2 Z' K9 t1 V, O5 s1 R6 Z; e end; q) T$ M0 G, v( ?
如果分支比较多,用:9 a0 r U+ }- f2 u1 F& v9 d) m7 P
inspect <expression>
: e& H* _3 q( {! c% j C when <constant_list> then( f1 |, i+ S- Z% T) w' B
<statement sequence1>;
3 ?2 E- I1 p. Z4 j6 Z6 S when <constant_list> then3 `0 I! L; @9 a
<statement sequence2>;
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else
, K6 |9 @: X5 _% p7 w <statement sequence3>;
- j: d# D+ ~! |& |- L! O; Rend;
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2循环语句
/ f9 d3 q( |8 n' L (1) from <statement sequence1>' D! K/ D' F2 ?9 T
until <condition> loop
/ G8 ?# {* F% @- D <statement sequence2>;
/ F& S+ m8 _, Y! V$ U9 V* d end;
$ [$ s F% M2 ^1 M1 A: F' ] (2) while <condition> loop- ^5 ]6 z" ?4 w2 G& {6 n6 K" x
<statement sequence1>;
3 t$ P! g) Q& B1 ~) W7 s! v8 N end;) ?& T8 i! ^' ^4 H5 P5 y
(3) repeat
8 c$ K3 l" J( h I <statement sequence1>;; g$ D2 d# M$ U% ^- F5 G& A) L: w
until <condition>;
; V# E8 H3 O; ?: `, x (4) for <condition> to <condition> loop# @ S: ?, J& g& m! C
<statement sequence1>;
- l/ R) \8 R0 v next;2 A5 C" {& {2 g) v( Q) Z
3中断语句( ?$ d" Z7 y6 h' N9 N9 `
waituntil <condition> prio <integer expression>;
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9 A; c5 a# v; z0 m/ {0 M- g, }以上为常用的函数!: ~) u5 }' t& `( z& C8 L
还有很多,如有需要我把资料发到你邮箱里 7 b9 ~, _" U5 e
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