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char2num() 是什么鬼？

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_周思思_

#1 Created at ... [Delete] [Delete and Lock User]

def char2num(s): return {'0':0,'1':1,'2':2,'3':3,'4':4,'5':5,'6':6,'7':7,'8':8,'9':9}[s] 这是什么语法？什么意思？ 小白没看明白……

廖雪峰

#2 Created at ... [Delete] [Delete and Lock User] 
def char2num(s):
    m = {'0':0,'1':1,'2':2,'3':3,'4':4,'5':5,'6':6,'7':7,'8':8,'9':9}
    return m[s]
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