҂F(xin)ʩĕrֻҪA䓽(܈ݼy䓡A䓽g)ľbͿᘌϘĬF(xin)ʩҪЩr
1˱ںϘ䓽ٰbA䓽˱MӴֶεL^˲ÙCеBӽ^Ҳɲ늺B
2䓽ڹȷֶνɈFwFwbpI(y)
3߶ȳ^10m䓽bOӋo̶Ͱb䓽ĄԹǼ