def str2float(s):
index=s.index('.')
mi=s[index+1:]
max=s[0:index]
def char2float(s):
digits={'0':0,'1':1,'2':2,'3':3,'4':4,'5':5,'6':6,'7':7,'8':8,'9':9}
return digits[s]
def f(x,y):
return 10*x +y
return reduce(f,map(char2float,max)) + (reduce(f,map(char2float,mi))/(10**(len(s)-index-1)))
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改掉拖延坏习惯🙃
def str2float(s):
index=s.index('.')
mi=s[index+1:]
max=s[0:index]
def char2float(s):
digits={'0':0,'1':1,'2':2,'3':3,'4':4,'5':5,'6':6,'7':7,'8':8,'9':9}
return digits[s]
def f(x,y):
return 10*x +y
return reduce(f,map(char2float,max)) + (reduce(f,map(char2float,mi))/(10**(len(s)-index-1)))