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发表于 2012-11-13 08:48:12
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1判断语句
O6 R h: s" N, [5 p if <condition> then
, ?5 H* g* _" Y <statement sequence1>;
" u: r0 O/ x( @: d0 o1 v elseif <condition> then& t7 ?* h0 F- L! U5 I
<statement sequence2>;5 A+ O8 B8 M1 o6 y
else 2 N9 }: F4 z5 a' x( y: Q6 S
<statement sequence3>;: X- b8 D# `* s8 t
end;* A; l7 X3 r% J, Z5 n
如果分支比较多，用：2 d+ c; d7 p8 F, S
inspect <expression>2 q0 B4 Z9 D* k/ g# B }
when <constant_list> then+ _, L8 O0 ~* }4 y) E* b0 t: I
<statement sequence1>;! o. s; H& n0 x7 Z/ \. I
when <constant_list> then
K5 a, F: C& X& r& n, ~7 [' L <statement sequence2>;
9 x: }, j1 d. K! d1 [ ...
# u3 `' i" j4 i/ | else
/ l. Q; H8 @, P* `1 h0 }: } <statement sequence3>;
4 z) S% _ A5 e1 Z. K, v4 oend;0 ?& n. g" U- R0 L" g' C
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2循环语句8 a- v+ c4 p7 p3 H, V6 z
(1) from <statement sequence1>: {1 V8 _% J+ c2 t( K( A2 ?
until <condition> loop* W' f/ Z ~3 D& S* }) y
<statement sequence2>;
4 p, I# Q2 l3 v4 p+ O end;) h: m: d* E4 C4 L
(2) while <condition> loop
: U/ c# ~6 x& }( b! b% r <statement sequence1>;$ w( {$ T' ~/ J4 m N7 i! Q+ o2 Y
end;
3 ]3 f6 K/ I3 p6 k (3) repeat L$ R; k4 K& M, E2 O* u1 N
<statement sequence1>;
) P* X5 N: _8 i* I until <condition>;
7 [4 I% R% n- B$ p1 ~ (4) for <condition> to <condition> loop/ i$ z. s/ y$ H: l! x0 L* h$ z
<statement sequence1>;
% X, H% x( u; v2 z3 }6 j next;
* m& R3 u- y- j6 f4 M3 g. e3中断语句
0 Y& y/ s" Q$ b' S1 l0 u/ f' q( K waituntil <condition> prio <integer expression>;
! c4 }: z4 o% X
5 c) b+ y8 W8 [( i7 S% p6 z& O1 L% i: g/ M; a7 s0 x* o
以上为常用的函数！
! f6 w. `9 n" B3 @" H. K还有很多，如有需要我把资料发到你邮箱里
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