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发表于 2012-11-13 08:48:12
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1判断语句& n0 Q6 r- `- B; D+ R) g
if <condition> then+ M! k6 T0 S1 X N9 i" G2 E
<statement sequence1>;" ?; r$ d9 ^0 l7 ]) y+ Q9 y# r
elseif <condition> then4 h* J0 S! v) I |
<statement sequence2>;$ M( d2 l/ R; m
else 6 B8 Y8 D7 [+ j1 J
<statement sequence3>; Z" l$ P! t# U3 ?& W b
end;5 V% t1 J& m8 w# S+ }/ a; D
如果分支比较多，用：# r/ `9 k9 F5 s: X
inspect <expression>4 V) V6 n/ h* [0 `
when <constant_list> then- r# k" m/ `, `, N( ]; c
<statement sequence1>;! _% f! O; T& A" g- a& y
when <constant_list> then* @5 t; _; n. W% u9 Q
<statement sequence2>;
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else
* m: K7 y& l/ I* h5 t6 ~* \ <statement sequence3>;
* X& Z% B, ]- Nend;
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6 R$ Z6 D$ y: d) f6 N7 Z7 L7 ^2循环语句
: o4 j0 d% e2 i0 S (1) from <statement sequence1>
: ~6 j6 V }' p# V, d: ? until <condition> loop- s/ I' |# U& F+ ~$ l# g
<statement sequence2>;: d# B; \4 Y1 A( S. C4 b
end;
( `/ T* e/ @0 y7 f) M0 N# s (2) while <condition> loop
' {4 v( D/ [$ p" R <statement sequence1>;
# j' n n3 N% c end;
+ l+ u/ F: @+ L$ U5 I" H+ e (3) repeat
$ I" Y/ o6 N' `5 C3 ~* s" `* F <statement sequence1>;% H6 ~' {3 h7 m2 R3 b" |( V9 z2 j
until <condition>;
: u1 S# H$ }+ [1 z: O* h# M (4) for <condition> to <condition> loop
( w- w; _0 F8 h+ X <statement sequence1>;
7 \' h, h/ ^% k next;
: b# y u4 D. w4 p8 N. V( ~3 | E1 a3中断语句
- T# k3 t0 B- F. w" r4 _ waituntil <condition> prio <integer expression>;8 _# s0 y' K9 g
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+ G. W. o. R. O, i
以上为常用的函数！) T" h/ o* A1 Z( \3 k8 }% B+ M
还有很多，如有需要我把资料发到你邮箱里
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