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发表于 2012-11-13 08:48:12
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1判断语句7 m# f6 q, D5 @
if <condition> then8 u- o8 v' O" H) v! ^* k
<statement sequence1>;
& F# v% K) r& l2 n elseif <condition> then7 }" {' u+ G! `
<statement sequence2>;) m6 j @( O1 ~$ h- W
else - u8 |# A# e2 `. B' W' J% _
<statement sequence3>;4 I# G- d1 i5 @% ^7 H. e
end;+ D0 x5 d h( a0 B
如果分支比较多，用：
! x0 b+ J1 |5 k% b inspect <expression>
8 W0 S4 c9 X1 w' Y6 q) W when <constant_list> then5 U" M7 E- f7 R8 i4 Z0 E
<statement sequence1>;
" o: `$ C- `, D4 d when <constant_list> then! {$ k# s6 Y) s$ Y' p+ v8 b7 H
<statement sequence2>;* M" ]3 R, j) u9 K2 D& }. e
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else
% p# g! |& T2 T4 E <statement sequence3>;
9 f& Q( G1 q/ _end;
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2循环语句' G0 t& |& I5 U3 k) r5 [6 J
(1) from <statement sequence1>/ ]: `' f w& B0 t, i" y7 D
until <condition> loop/ l7 h. R0 ~+ V$ B; A. a, p
<statement sequence2>;
$ }& ^8 G+ c8 d6 P- b$ L0 h9 w8 { end;
" T d5 t$ L, z0 q (2) while <condition> loop
5 `& u: M4 j0 N' X% S/ A <statement sequence1>;! K5 h; [5 C* `7 D
end;% L! `0 E4 l$ ^* n! Z
(3) repeat 4 Y2 Q# Q" H0 D8 n9 \' U' V
<statement sequence1>;
+ |# a: }2 ] ~9 e. s. R- Q- q until <condition>;0 ~8 x k, t! }7 g
(4) for <condition> to <condition> loop7 s9 ]7 f; n3 R- T; D9 t
<statement sequence1>;4 G$ S G/ t' F( U0 A3 S, @
next;
1 W& q. A3 P# ?) @3中断语句( K3 R% Z) d" O9 T/ b- W8 w
waituntil <condition> prio <integer expression>;4 k% J4 n0 d0 ?0 [; u
$ U3 K, \* f- {! ^: t, Q/ L9 V
6 V$ ^ M( y0 @以上为常用的函数！/ k" e1 b4 t/ O. I# t2 ~
还有很多，如有需要我把资料发到你邮箱里 0 {, Z7 S1 o2 Y( I
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