str = u'上海'uni = str.encode('unicode-escape')uni
Out[55]: b'\\u4e0a\\u6d77'uni.decode()
Out[56]: '\\u4e0a\\u6d77'print(uni)
b'\\u4e0a\\u6d77'
str = u'上海'uni = str.encode('unicode-escape')uni
Out[55]: b'\\u4e0a\\u6d77'uni.decode()
Out[56]: '\\u4e0a\\u6d77'print(uni)
b'\\u4e0a\\u6d77'