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发表于 2012-11-13 08:48:12
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1判断语句
, @) x$ `9 U, ?; p; i$ P; T7 a if <condition> then4 k- V2 m @' }+ }) r
<statement sequence1>;$ R5 w4 E0 j3 J5 w8 g& h
elseif <condition> then7 N( ?6 g4 m% e) ?: x9 E( I
<statement sequence2>;
- p3 p; }* s; p2 V# S+ `; ` else ) R q9 z* j5 c3 K2 U% k# }4 r* H
<statement sequence3>;
: f, `; |- ~7 M end;
- \+ j3 O* v+ b如果分支比较多，用：
0 [- n5 v/ [, c inspect <expression>
1 F v( q( W& J+ N) O9 U0 P) m" c when <constant_list> then
! N+ c9 M* [, I <statement sequence1>;
5 v7 p5 m: V2 y x# v! f: [" ^ when <constant_list> then
9 Y6 \9 V2 U/ } <statement sequence2>;/ c( l. t5 q* s v( w1 `9 A& \
...
$ R0 A+ A- z. E% ~' F& ~ else
1 @1 X( ]& d$ m <statement sequence3>;
, @0 e! M9 Y0 d& i8 qend;& `2 ]) J: @; ~+ ^( x% S
& i0 [( T: n- t7 B0 r# a2 c& ?2循环语句
$ ^- w [& s8 M9 T4 ? (1) from <statement sequence1>8 }$ _% G* D8 t
until <condition> loop& `: v, d: d$ V6 O# u: ^: H
<statement sequence2>;. c" [5 W$ }* J5 V6 w
end;
s0 m' b$ _; ?; ` (2) while <condition> loop
$ B; Z7 X6 b9 D9 k <statement sequence1>;
- `; f. O v) |4 \% h6 D end;
6 p; u1 \* Q6 v1 P7 e+ V( W9 c+ h (3) repeat ! m% H3 B; E, N4 K% {1 K
<statement sequence1>;
3 ?, S/ M2 m! `3 X+ Z4 [/ w until <condition>;
# E% F2 |: Y$ l8 L (4) for <condition> to <condition> loop4 M3 l7 \" p6 g3 g
<statement sequence1>;
; F- E" j! C! y! X* B next;
, T. q B8 `' F2 X8 G2 u+ s& V3中断语句
) F. i3 ]( p2 b i: Z4 G waituntil <condition> prio <integer expression>;
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# r$ R( Z1 Y8 A1 J. g" C$ R* i以上为常用的函数！
4 H* e8 F2 I; x9 C还有很多，如有需要我把资料发到你邮箱里
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