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发表于 2012-11-13 08:48:12
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1判断语句
: {" l& @/ T/ {7 A; J if <condition> then
* ~; t8 K4 g5 u* F8 |. W' q; L0 }5 a <statement sequence1>;8 Z# [( _- t; M4 Z8 |3 W
elseif <condition> then/ C# W4 H, A) z/ }) g# F
<statement sequence2>;
H& q: J# s5 I else : q n) W* s1 b5 M1 I
<statement sequence3>;
0 ~' h4 [( p i, C$ G4 u end;
) Z- `& |+ l5 A) n& p如果分支比较多，用：* Z7 O; _. F6 f
inspect <expression>
8 q! I- U, }7 h( {& v when <constant_list> then
2 P/ [. V$ `2 I0 \ <statement sequence1>;" i- I: F5 f; ~
when <constant_list> then
& R+ x& E2 \$ ^ <statement sequence2>;
* R8 q* \4 ~( A A( `) D ...
/ I' X R; {6 _ else
0 f; M2 h' Q: Y9 Q <statement sequence3>;
( ~9 E- \* l0 {& H% n% V( Fend;( L7 \" [* d& _9 e
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2循环语句
/ Q* H6 S! G: N$ M0 I4 u% {, F (1) from <statement sequence1>
# S( a8 h/ B; ` until <condition> loop
5 s1 X1 t1 ?' }) E3 m m <statement sequence2>;
6 C4 K& G& z8 M" }8 j. W6 s end;
) w- W% k9 |" g4 Y$ I (2) while <condition> loop; ?2 b8 ?: V% k& l0 G; j1 d
<statement sequence1>;% D }* O! ?! k2 E% @1 s
end;* K5 t. U0 S; G3 } `- s
(3) repeat
# |) @8 L/ v8 p( h <statement sequence1>;7 Y" a, y: }3 p; ? g( o6 H/ t% r
until <condition>;
* ?3 ^# h3 l) i- {) Z/ C (4) for <condition> to <condition> loop
0 j0 F/ V) p R/ O' w3 U2 M/ Z0 j <statement sequence1>;7 f: d8 i' R$ x/ |. m2 D
next;% F# u6 w+ O F1 N
3中断语句* G$ u' t& c$ B4 S5 s
waituntil <condition> prio <integer expression>;
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" A, K# \5 ?1 c& @: |- v: X以上为常用的函数！
$ m- }# b/ E. A. \+ f还有很多，如有需要我把资料发到你邮箱里
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