将逗号分隔的整数的长字符串转换为x和y列

import csv

def convert_string_to_columns(input_string):
    # 清洗字符串，确保只包含数字和逗号
    cleaned_string = ''.join(filter(lambda x: x.isdigit() or x==',', input_string))
    
    # 使用csv模块读取字符串
    reader = csv.reader([cleaned_string])
    for row in reader:
        x, y = map(int, row)
        print(f"x: {x}, y: {y}")

# 示例字符串
input_string = "123,456,789,1011"
convert_string_to_columns(input_string)

import csv

def convert_large_string_to_columns(input_string, chunk_size=1024):
    # 分块读取字符串
    start = 0
    while start < len(input_string):
        chunk = input_string[start:start + chunk_size]
        reader = csv.reader([chunk])
        for row in reader:
            x, y = map(int, row)
            print(f"x: {x}, y: {2}")
        start += chunk_size

# 示例长字符串
large_input_string = "123,456," * 1000
convert_large_string_to_columns(large_input_string)