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发表于 2016-11-14 18:11:56
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回复 1# ya574544187
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自己看吧,官方的说明:5 w) q/ H/ e3 E$ J
fsg1;
+ J& b( E, {0 P1 @( V& jreturns
$ G# ^2 B. y0 P2 d4 |" u8 T9 Qadvanced math functions
8 H; U) Q- y( o2 q9 M8 D/ Q/ c4 C1 v0 for values less then 0
2 K4 h: P9 M( B/ D1 ]1 R! @1 for values greater then pr equal to 0 e$ u8 @$ w' \% i/ P2 l% e
, @( ?. v' {* D) K0 ~: ]: s3 Ffsg2:
4 E. j: k4 x/ G) O' y, g3 P2 M- lreturns
# x1 b7 e1 x, t- ^- v- nadvanced math functions) }9 s6 c6 Q( j8 h5 i( X2 j7 V
0 for values equal to 0
: O8 G6 U3 C/ ^* r3 x3 u' X6 B1 for values not to 00 g* Z4 c+ T1 S, q9 @! x$ ?) Y
: D, r' b5 d, v: yfsg3:
9 h: L' Q4 j+ N1 u) O, N+ {# nreturns
n5 r; L& a I# H$ Uadvanced math functions
P& n+ n. A- q& ~* i$ N0 for negative values9 ^/ G/ X @: _; Q& c* U
1 for zero + ]. q3 Y. T( ?: v
2 for positive values |
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