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发表于 2012-11-13 08:48:12
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1判断语句
. O& `+ p- T0 m. y- o. @; ^/ M; e6 g if <condition> then/ {5 A8 }8 _! Q( L. x
<statement sequence1>;( E& q. U" X; t! x3 M
elseif <condition> then+ r! S7 P/ ]& f
<statement sequence2>;$ S- ^" j) p) Y1 m! W" m
else
) `1 L. E: {; t# G) h. n7 H <statement sequence3>;0 f! O# E& y! D) v0 E4 `4 Q" E
end;3 |) B7 [$ |+ M o* m
如果分支比较多，用：4 c8 X0 ]" {/ x/ s0 d. f
inspect <expression>
" I- j" E8 K6 { when <constant_list> then& ^ M4 N4 _3 g( a/ Z
<statement sequence1>;
; X0 J3 D4 E7 p7 j7 L when <constant_list> then( D3 o( h, c* i5 z/ t* p) h% n- M: H3 n
<statement sequence2>;
& ^( r7 c- ]9 c7 b! V ...
! d0 F0 }/ r6 L$ S* E" Q0 I0 W else
) V: _% U( k2 t6 z+ l <statement sequence3>;
6 c5 S S u7 ^4 [end;
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2循环语句% [0 y0 \1 f' b# v7 E
(1) from <statement sequence1>3 @ Q. G8 h8 g& O% \8 {
until <condition> loop' {5 K: |1 A0 n- u; q5 P* X8 y; P- {1 ~2 ]
<statement sequence2>;
4 E+ J% w. t; v% K X @2 z9 S4 \5 x end;
4 X. `- n3 A9 o- K! B9 O (2) while <condition> loop1 s; s, u8 `& t; _3 m: f6 ]" s
<statement sequence1>;' Z3 N/ B' ^+ Y* f4 ^( o
end;; v, G* K/ N0 K
(3) repeat 6 C! u1 u E8 G* z* t
<statement sequence1>;
* x' N* u$ j3 r7 ] until <condition>;
4 g f0 C% b3 v) m5 _: m3 U (4) for <condition> to <condition> loop! r* B. E8 G2 S* b0 z0 d
<statement sequence1>;
( N" s4 A6 ^# F. i ^ V3 d next;
. ^+ g) x3 T6 r0 o) |# i# \+ q# k- L3中断语句
. | |6 S+ g1 I6 V# f waituntil <condition> prio <integer expression>;
3 Y: B/ x# K4 d# L# I: s8 H% Z2 [3 Y7 ]7 S/ l+ Y) G3 O
5 I6 n6 w" m+ j( v2 W% Y7 g1 H3 a以上为常用的函数！
6 A0 l3 W: _* p还有很多，如有需要我把资料发到你邮箱里 8 Y U6 q( b$ z- r+ c
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