随笔记录代码本

判断字符串是否为正整数 isdigit()num_list = ['1', '3', '-5', '7.7', '9.0']digit = [num.isdigit() for num in num_list]print(digit) # [True, True, False, False, False]判断字符串是否为整数(包含正负数)num_list = ['1', '3'...