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发表于 2012-11-13 08:48:12
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1判断语句
! s0 O, w# M6 N if <condition> then
, a: k, q+ G1 F7 e' U <statement sequence1>;; s; ^( |* Z& @- |/ B( O& [
elseif <condition> then
' ^' r. x( a# n9 K <statement sequence2>;% ], A- A0 Y: J$ b1 `6 ]
else 1 v# c1 F6 o, S* _% m# b6 b
<statement sequence3>;, p. ~; R- R3 H6 P; p
end;9 U, I; r" U3 z% P" T* l
如果分支比较多，用：
1 I- z8 U; F( o; z inspect <expression>' U! U, l6 A: j5 ^% z9 l* R6 |
when <constant_list> then
# _6 v1 Y8 |$ J0 P <statement sequence1>;
% a6 P8 U1 [" v when <constant_list> then
2 P& ~) _5 @9 k <statement sequence2>;
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else3 i5 g% \8 a$ c1 L
<statement sequence3>;
. q. u3 n" A, h$ q. ~! aend;& t% P" d3 b" R# I
9 _/ _/ h" Q% r' _2 j0 Q: J2循环语句
1 v m; P$ d4 \1 g6 P' ^ (1) from <statement sequence1>4 f( R+ c) z1 j! p/ k
until <condition> loop! c2 q- e3 u( t! s8 k# u% `) Y- l# V
<statement sequence2>;
2 B, r, V8 }; H end;
0 ]- J- M. W3 }& s# Y+ C( y (2) while <condition> loop' Y) i8 o! h$ [ Y$ p$ w z* K- {
<statement sequence1>;
4 R1 H. h7 y$ ?- } end;3 Z; Z0 t; G8 v* U- b9 D$ r# r! Y
(3) repeat
0 v5 P: h m2 {7 d& N/ h <statement sequence1>;
4 O$ Z8 ?8 h8 K5 X& q- r# q2 N' f until <condition>;: i) E- ]/ A0 W8 c; Y: k
(4) for <condition> to <condition> loop2 D Y/ f6 T4 c0 r
<statement sequence1>;$ @5 T8 D4 u; A& U% M
next;' D. }% s; u* h
3中断语句
) f" Z5 ?& n' l) k2 x. r waituntil <condition> prio <integer expression>;
h! O* a' l) ]8 X
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T. a2 x! l! x0 \+ T# }5 j$ A! F# u以上为常用的函数！* o* Y. Y, o; s, u. X& P
还有很多，如有需要我把资料发到你邮箱里
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