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在python列表操作中,面对需要把列表中的字符串转为礼拜的操作,无需强转,通过简单的几步就可以实现,本文介绍python中字符串转成数字的三种方法:1、使用join的方法;2、使用int函数将16进制字符串转化为10进制整数;3、使用列表生成式进行转换。
方法一:使用join的方法
num_list=['1','2','3'] str_list = ''.join(num_str) #把列表中的元素连起来 print(int(
str_list)) 输出 123
方法二:使用int函数将16进制字符串转化为10进制整数
a = “0x12” int(a, 16)#18 int(a, 10)#error a = “12” int(a, 16)#18 int(a, 10)#12
方法三:使用列表生成式进行转换
# 使用列表生成式 str_list = ['1', '2', '3', '4'] int_list = [int(x) for x in str_list]
print(int_list); # output [1, 2, 3, 4]
以上就是python中字符串转成数字的三种方法,大家一定要根据具体的环境采用不用的方法哟~