python把str转换为int时间:2023-03-09 15:34:59 def str2int(s): def fn(x,y): return x+y def char2num(s): return {'':0,'':1,'':2,'':3,'':4,'':5,'':6,'':7,'':8,'':9}[s] return reduce(fn,map(char2num,s)) print(str2int(''))