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发表于 2012-11-13 08:48:12
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1判断语句
0 n3 A/ k+ s# q9 W% f. e. y- ] if <condition> then
6 y" D: v4 ~1 c5 d( c <statement sequence1>;
! C! e' x }& D: Q4 P+ k E elseif <condition> then
" R- ?1 M7 ^4 X <statement sequence2>;' Z* n" Y7 n: a1 ?0 L0 c: W
else
* R* V% p7 X: C9 e2 i* u <statement sequence3>;7 x" x. A! m& H! j4 I* p( ^
end;% a$ j4 v6 q$ x/ r+ \5 @
如果分支比较多，用：
2 `9 b. Q: w( e ~8 L, q inspect <expression>1 ?: j0 q0 t3 h) w4 m( l' L7 I( U
when <constant_list> then
9 k- ?2 I2 f! R, B <statement sequence1>;
% j3 x- y0 a% i; o4 q- x9 }8 p' k$ g when <constant_list> then; o; ~7 K1 q# r* H9 z1 V
<statement sequence2>;1 l5 M# ^: d+ m+ {* S7 {2 m5 k8 P
...
* ?. @' o5 `5 j( }: ?9 F: B5 @ else* N0 S) d: b. t
<statement sequence3>;5 Q7 B/ k9 v8 ]; a$ A
end;
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2 w; b9 v ?: ?) w0 F# K3 V% S2循环语句
: @ Q+ ^* W% ^- s% f) z. e (1) from <statement sequence1>5 I" m( o% Y" x) e
until <condition> loop
' l# h) _2 Q$ X: a" n' @ <statement sequence2>;- J& Y, A2 V% a4 Z0 l0 v7 Z
end;4 R- D3 Y' j, e) [( [& D. o6 F
(2) while <condition> loop
; A' [$ Z, W* p# z5 F* c <statement sequence1>;8 v4 |& m: x4 M* S6 j
end; O5 P( _3 m% W1 ~; @& d
(3) repeat
) W) s4 ]5 y: m( i# i <statement sequence1>;
2 Y( i C; R" d until <condition>;
4 {& \0 D7 e" z9 W2 ` f6 F (4) for <condition> to <condition> loop) b- w2 ^2 a8 P- ?9 l9 p
<statement sequence1>;
4 W8 y* \" q6 k; f' j next;4 Z$ C6 L6 G C/ i
3中断语句
, r9 }% S9 Z5 T% L& g' F waituntil <condition> prio <integer expression>;
1 y0 V$ h4 O( p; I! \+ d" b% b+ H& H8 O3 L8 m
, O8 } ~9 d0 b8 @ N0 S以上为常用的函数！
8 L4 y+ D$ U3 X1 c9 E还有很多，如有需要我把资料发到你邮箱里 1 Z D3 x+ v, e
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