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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
- a/ L! O# Q% Q4 c if <condition> then( v8 _* z& @ T y6 e
<statement sequence1>;* `; X" V. e3 L8 Q( f+ Q6 g
elseif <condition> then
6 M* _' V7 Q7 N" F) K! @' z <statement sequence2>;2 |1 z& w6 ~+ E2 s. j
else 3 g+ ^" }! O& f+ V3 U
<statement sequence3>;$ l, Z: }1 P& r1 E f
end;8 D( @4 @! Z' U- T
如果分支比较多,用:: K4 K, Z% B' d
inspect <expression>
* C- u3 ^$ L/ m5 U" t when <constant_list> then( r' ^; r0 f- F3 g# q9 Q3 Z
<statement sequence1>;
* o) t* \' i/ y) j when <constant_list> then+ P7 j2 O ~ F* n6 l
<statement sequence2>;
; I, b" d) t+ n6 [4 f ...
% A6 v: J2 Z6 @" _ else% U' |8 N* @ p/ c. L* E; d/ B
<statement sequence3>;0 W6 \5 {0 z4 R# {% T3 b
end;3 i& w$ J* q: |2 o
# D- d, R; }3 W$ h* v2循环语句
7 S9 \: d6 f0 E1 Z% E (1) from <statement sequence1>
% l9 ?: B& ]4 e until <condition> loop3 a2 W" W1 L6 @2 v
<statement sequence2>;' S: I: J2 x6 R7 ? z
end;$ F2 }( ?+ t6 K$ C% s4 @ w
(2) while <condition> loop
4 @) I2 C) {, m) } <statement sequence1>;: ]; G0 ~) m& `) `
end;1 r! w/ a4 a& a+ b+ ]! s+ w V
(3) repeat , k. [- t9 k+ Y2 a
<statement sequence1>;+ ^9 |% t* R# B' D" Q: |4 y& I
until <condition>;
8 r+ Z3 Q9 u- y t (4) for <condition> to <condition> loop
( H8 K# v- t, O& i <statement sequence1>;+ l' G( y5 i9 x
next;! Z( ]$ D5 K% z: M7 K
3中断语句3 _7 I" z0 N" c# e% P
waituntil <condition> prio <integer expression>;/ S' ~& `* C; p) h E
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以上为常用的函数!8 R0 H$ f0 e( E% L# P3 }
还有很多,如有需要我把资料发到你邮箱里
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