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发表于 2012-11-13 08:48:12
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1判断语句
! J$ K1 b6 k ?! g% B if <condition> then# r. Y& h" e+ Y3 {% Z9 m+ M1 y
<statement sequence1>;
) r0 n- ^; k3 h# Y9 l. I elseif <condition> then
9 B- I& @- Q. f* Y; ?6 w) b% [ <statement sequence2>;
4 D& ~( ^' B2 d* P' u else
" C) c1 E5 `* S- k. { |* B' U <statement sequence3>;$ m( A7 y% V2 G: G/ y6 Q
end;
; l2 I8 z# O* v. m3 I5 e% @' G如果分支比较多，用：
8 p9 P; W% w6 E1 ^ j. ^5 f1 X6 _6 j inspect <expression>
5 B, ^& f7 M4 e, P when <constant_list> then8 R; Q6 b! A( d. b; K
<statement sequence1>;
2 a1 U5 R2 p, p& N2 S when <constant_list> then
3 a5 c2 e, G# E5 m$ \2 v9 s( Y- u+ ? <statement sequence2>;
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else
5 _& [5 T4 k4 Q9 M8 u <statement sequence3>;( w( z7 W5 a9 f
end;# Q9 ^% X0 {/ x8 `% z# o' A
+ J3 O# q0 I2 T6 k$ B3 w9 k2循环语句
! l7 m. t5 h+ j/ q- T; G (1) from <statement sequence1>- [9 H6 Y: _# @! j
until <condition> loop
6 `+ _* j$ M1 b9 { <statement sequence2>;( d& N6 Y$ {" P* x6 C
end;
9 }4 U. C+ d% }' r2 @2 `$ N+ @ (2) while <condition> loop% x( t. g: l8 H" T9 U
<statement sequence1>;! J( @8 a- r. m9 @) s
end;: A8 c& k9 `4 V4 x9 F
(3) repeat 8 ]3 j" ?: T. X) Y. X8 K
<statement sequence1>;
* O: v5 i: W- p( R; q- `/ B until <condition>;
5 \$ i9 M0 Q- u1 w9 {( Z7 b (4) for <condition> to <condition> loop# y1 t" C/ i9 g5 c L: c
<statement sequence1>;% g0 ~9 Y1 e6 H; s9 ~8 E
next;
c6 p8 {! k2 {/ c3 k s3中断语句2 U3 A$ D, i4 ?
waituntil <condition> prio <integer expression>; @" P6 \! ?7 w: F6 }4 b7 A* p
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5 y4 G! Z, l3 c: p6 r7 Y以上为常用的函数！
' `2 n3 c Y4 @- @7 H还有很多，如有需要我把资料发到你邮箱里 & R0 Y& N! ~9 k4 t( n: s
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