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发表于 2012-11-13 08:48:12
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1判断语句
: w7 q4 Z" o7 B1 k) ]( }; u+ a z5 [ if <condition> then- t2 a9 q' F, k3 t0 g- a- b4 [! h3 M
<statement sequence1>;
- \' |) N) s5 z+ [; Z/ i7 r0 o+ J elseif <condition> then# ~ s, x( ]7 e- S: w+ {0 x* F0 h
<statement sequence2>;' m9 g' Y# H; K0 U) a& Z2 R. r/ O# g# R
else
% N# H& l# @7 n- C <statement sequence3>;( x* Q. r+ U2 z7 W& A2 j
end;
$ v& t- T' N; I {如果分支比较多，用：/ [! |' [: R9 m6 p8 n# \7 w6 L% H
inspect <expression>
3 \/ l1 v+ Z5 t% |% j& @ when <constant_list> then( y# ] V" \. w& B/ \
<statement sequence1>;3 v( ~+ ^, j) q9 Y& J" `
when <constant_list> then1 h" z0 `- b3 d: l+ c4 \- _) c& ?
<statement sequence2>;
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else1 k+ S' X3 P# H- x( j. a
<statement sequence3>;
! L8 m6 Y& }. l3 v9 cend;' P$ f/ i% W) I% q
! E' h8 i0 L w/ k2循环语句
( x4 {: h5 H+ w/ w: I (1) from <statement sequence1>
% Q% B3 U- G, j3 U until <condition> loop
; m, k, E8 d3 S3 D7 q <statement sequence2>;
4 G8 o4 m$ Q( t D4 W end;( g, o; U% H( n
(2) while <condition> loop
7 r" l8 |+ ]# H8 L0 ` <statement sequence1>;6 ~8 h2 ?8 R! v5 b T5 @+ P
end;
6 \! `9 u+ |. j7 _2 ~' x: p6 } (3) repeat
3 D) A+ J2 ~8 \0 w: @+ C$ Q9 B <statement sequence1>;
a- @9 v% @" v4 z until <condition>;
! c! k# {4 X& N7 e7 J2 g (4) for <condition> to <condition> loop
9 ?7 P* s) T. U1 y- ~ <statement sequence1>;$ Q3 E, R S' M- y8 t" `
next;
( O J9 A2 u/ }) b! w2 H6 ]4 X3中断语句2 n) R0 {) u9 f6 x+ }1 j
waituntil <condition> prio <integer expression>;
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0 m" k! `* s/ I" r$ `7 q g+ P' P z% L6 s8 m7 J% m; P* A
以上为常用的函数！
/ N, b- T% @7 m还有很多，如有需要我把资料发到你邮箱里
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