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发表于 2012-11-13 08:48:12
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1判断语句- H7 e2 P% t7 n$ V; R2 b
if <condition> then# N0 X. _6 o4 q0 A5 R
<statement sequence1>;, w2 d) g: t9 R1 J2 g
elseif <condition> then8 ^7 h( [4 Z, A* C
<statement sequence2>;
, j* F' R% d$ L( h+ K9 D9 c else
& Q; w# u# }! y% [! T* k6 ] <statement sequence3>;% x0 D1 q+ w7 _5 T, x- \
end;
2 Q |- R% f* O如果分支比较多，用：+ m- A* s$ i6 E
inspect <expression>5 W: n# e& c& s( l) Q
when <constant_list> then
8 J2 a5 j% G' ?7 ]+ ]/ Q ? <statement sequence1>;
/ w9 K) H# A7 F when <constant_list> then* p: v; ?% F0 ^8 h4 Z* P+ a
<statement sequence2>;
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else
. R! A* z' K4 v j5 q0 B0 Y" M <statement sequence3>;
" E! p6 N# }. C# \/ c5 _9 ]end;
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" I3 c7 T5 u' f" H$ M- H6 F2循环语句
; C" t: V) b( Y9 ^ (1) from <statement sequence1>
. d: M0 l0 g# I- }) \! U until <condition> loop1 U7 S# @/ O0 q* ` w
<statement sequence2>;* S6 N: [" U* l7 i
end;
" Z- k& [% u# W! W/ r! S (2) while <condition> loop
8 t1 Q; u* H% U5 U& L* @8 o <statement sequence1>;0 \+ P$ n- i6 |+ t6 K" i- i! L
end;
9 {7 N4 ~0 ?' K' d. ` (3) repeat
" C ~3 a& Q/ G9 n" d0 c <statement sequence1>;% V1 ?9 H6 k& K9 p3 F
until <condition>;
) O# L+ U$ R; A0 n6 r5 W (4) for <condition> to <condition> loop
! Y, v$ c) P1 F3 ]' y7 J$ f <statement sequence1>;
y$ v$ Q G3 L+ W5 s" C, u6 L next;' Y8 b, r5 G7 Y, v: m, V; C; l
3中断语句/ P) D$ ^4 q4 T* n, w1 s
waituntil <condition> prio <integer expression>;# J! C" U0 ]9 q7 J I. O
+ l; ~* R) v* `( p3 h
0 c, \ b( @7 q/ B" e以上为常用的函数！9 K2 R1 Q* C o3 m1 U
还有很多，如有需要我把资料发到你邮箱里
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