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发表于 2012-11-13 08:48:12
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1判断语句" Z' F' ^1 x- d3 }4 p& G; k
if <condition> then
0 }- n+ O* Q' x! d; J, u- s. L0 L <statement sequence1>;
: t4 D' ^# X. b- m, v# r! q elseif <condition> then
& {- p& E# o% `# H& y" B <statement sequence2>;4 L/ |: D, f, z; c4 E: M: D# E
else
3 x0 F$ _& z% U <statement sequence3>;2 \( i8 O7 A" v W) V1 t8 o, W+ }8 n* @
end;- o1 Z/ F. R: x3 j5 G+ Y1 m+ _. q
如果分支比较多，用：# s8 a' U6 }9 W
inspect <expression>0 ^1 m# _: ?+ M% f; Y% C% G
when <constant_list> then1 `9 A0 y% g/ E
<statement sequence1>;
5 e, Y: g p# m! M% P0 H. J0 [, v when <constant_list> then2 f7 V7 J) L7 Q% C' C1 y1 P
<statement sequence2>;/ S* r" t F0 r$ `- [
...
( S0 i: t, z( v# C! s else
; W6 S/ O: V; h+ i9 W <statement sequence3>;: w) N' A1 t) u' i, t
end;$ y6 C- u+ o/ ]; k1 o" j
/ R$ O+ G5 [: m" G5 d9 j2循环语句! [& }" y' X) D" Z& g) Q0 O
(1) from <statement sequence1>
7 \6 Q6 H; b, V8 S until <condition> loop0 [2 n* L$ {. z: P3 p
<statement sequence2>;0 x' i& p K/ u6 R) h
end;! M( `7 |# }6 K- t x2 y( T& r9 P
(2) while <condition> loop& o' E* M* E% E* B1 F, b/ K& v6 J- ]8 e
<statement sequence1>;4 ^' p+ ?9 C4 e9 C- ]6 @2 y
end;
5 b, v3 R+ T; H% f (3) repeat
% y) A( E) U3 B2 q# U, t9 ?: i <statement sequence1>;
# o N0 _0 N+ O( e' l8 j' B until <condition>;
$ H' q( C0 c+ T' V. ?( a5 z (4) for <condition> to <condition> loop
$ S7 q/ K1 b3 x1 B9 G3 N2 z <statement sequence1>;5 q$ O! q9 ^) V& N" g4 J) ]
next;1 x4 T. o, F e" F6 ?& C5 O7 f
3中断语句! U$ }1 \# h4 Y5 u) @4 I3 |3 Q
waituntil <condition> prio <integer expression>;# r) m1 C5 Y3 j0 B+ Y: e5 p
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以上为常用的函数！5 j, o" ?* Q% I. D; L- |, L
还有很多，如有需要我把资料发到你邮箱里
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