{"id":1181355,"date":"2025-01-15T18:50:16","date_gmt":"2025-01-15T10:50:16","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1181355.html"},"modified":"2025-01-15T18:50:20","modified_gmt":"2025-01-15T10:50:20","slug":"%e5%a6%82%e4%bd%95%e6%8c%89%e8%a1%8c%e8%af%bb%e5%8f%96%e6%96%87%e4%bb%b6python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1181355.html","title":{"rendered":"\u5982\u4f55\u6309\u884c\u8bfb\u53d6\u6587\u4ef6python"},"content":{"rendered":"

\"\u5982\u4f55\u6309\u884c\u8bfb\u53d6\u6587\u4ef6python\"<\/p>\n

\u6309\u884c\u8bfb\u53d6\u6587\u4ef6\u5728Python\u4e2d\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5e38\u7528\u7684\u5305\u62ec\u4f7f\u7528open()\u51fd\u6570\u3001\u4f7f\u7528with\u8bed\u53e5\u3001\u4ee5\u53ca\u5229\u7528\u8fed\u4ee3\u5668\u8bfb\u53d6\u6587\u4ef6\u3002<\/strong> \u5176\u4e2d\uff0c\u4f7f\u7528with\u8bed\u53e5<\/strong> \u662f\u6700\u63a8\u8350\u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4ec5\u7b80\u6d01\uff0c\u8fd8\u80fd\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u907f\u514d\u8d44\u6e90\u6cc4\u9732\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u79cd\u65b9\u5f0f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528with\u8bed\u53e5\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n

\u4f7f\u7528with\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u88ab\u6b63\u786e\u5173\u95ed\u3002\u5177\u4f53\u505a\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n

with open('example.txt', 'r') as file:<\/p>\n
    for line in file:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cwith open('example.txt', 'r') as file:<\/code> \u6253\u5f00\u4e86\u4e00\u4e2a\u540d\u4e3a "example.txt" \u7684\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u4ee5\u53ea\u8bfb\u6a21\u5f0f ('r'<\/code>) \u6253\u5f00\u3002for line in file:<\/code> \u8bed\u53e5\u5219\u904d\u5386\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\u3002line.strip()<\/code> \u7528\u4e8e\u53bb\u9664\u884c\u672b\u7684\u6362\u884c\u7b26\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528open()\u51fd\u6570\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
\u4f60\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 open()<\/code> \u51fd\u6570\uff0c\u7136\u540e\u624b\u52a8\u5173\u95ed\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
file = open('example.txt', 'r')<\/p>\n
for line in file:<\/p>\n
    print(line.strip())<\/p>\n
file.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u6709\u6548\uff0c\u4f46\u9700\u8981\u8bb0\u4f4f\u624b\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8d44\u6e90\u6cc4\u9732\u95ee\u9898\uff0c\u5c24\u5176\u662f\u5728\u7a0b\u5e8f\u51fa\u73b0\u5f02\u5e38\u65f6\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528readlines()\u65b9\u6cd5\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
readlines()<\/code> \u65b9\u6cd5\u5c06\u6587\u4ef6\u7684\u6240\u6709\u884c\u8bfb\u5165\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u7136\u540e\u53ef\u4ee5\u9010\u884c\u5904\u7406\uff1a<\/p>\n<\/p>\n
with open('example.txt', 'r') as file:<\/p>\n
    lines = file.readlines()<\/p>\n
    for line in lines:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u6587\u4ef6\u4e0d\u5927\u7684\u60c5\u51b5\uff0c\u56e0\u4e3a\u5b83\u5c06\u6574\u4e2a\u6587\u4ef6\u8bfb\u5165\u5185\u5b58\u4e2d\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u8fed\u4ee3\u5668\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
Python\u6587\u4ef6\u5bf9\u8c61\u662f\u53ef\u8fed\u4ee3\u7684\uff0c\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u4f7f\u7528\u8fed\u4ee3\u5668\u6765\u6309\u884c\u8bfb\u53d6\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
with open('example.txt', 'r') as file:<\/p>\n
    iterator = iter(file)<\/p>\n
    for line in iterator:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u548c\u76f4\u63a5\u4f7f\u7528 for line in file:<\/code> \u7c7b\u4f3c\uff0c\u4f46\u663e\u5f97\u66f4\u7075\u6d3b\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u9010\u884c\u8bfb\u53d6\u5927\u6587\u4ef6<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6587\u4ef6\uff0c\u9010\u884c\u8bfb\u53d6\u53ef\u4ee5\u907f\u514d\u5185\u5b58\u4e0d\u8db3\u7684\u95ee\u9898\uff1a<\/p>\n<\/p>\n
with open('example.txt', 'r') as file:<\/p>\n
    while True:<\/p>\n
        line = file.readline()<\/p>\n
        if not line:<\/p>\n
            break<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528 readline()<\/code> \u65b9\u6cd5\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\uff0c\u76f4\u5230\u6587\u4ef6\u7ed3\u675f\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u751f\u6210\u5668\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
\u751f\u6210\u5668\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u751f\u6210\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\uff0c\u4ece\u800c\u8282\u7701\u5185\u5b58\uff1a<\/p>\n<\/p>\n
def read_file_in_chunks(file_name):<\/p>\n
    with open(file_name, 'r') as file:<\/p>\n
        while True:<\/p>\n
            line = file.readline()<\/p>\n
            if not line:<\/p>\n
                break<\/p>\n
            yield line.strip()<\/p>\n
for line in read_file_in_chunks('example.txt'):<\/p>\n
    print(line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528\u4e86\u751f\u6210\u5668 yield<\/code>\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u751f\u6210\u6bcf\u4e00\u884c\u6570\u636e\uff0c\u9002\u7528\u4e8e\u5927\u6587\u4ef6\u8bfb\u53d6\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528contextlib\u7684contextmanager<\/h3>\n<\/p>\n
\u4f7f\u7528 contextlib<\/code> \u7684 contextmanager<\/code> \u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7b80\u6d01\u7684\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff1a<\/p>\n<\/p>\n
from contextlib import contextmanager<\/p>\n
@contextmanager<\/p>\n
def open_file(file_name, mode):<\/p>\n
    file = open(file_name, mode)<\/p>\n
    try:<\/p>\n
        yield file<\/p>\n
    finally:<\/p>\n
        file.close()<\/p>\n
with open_file('example.txt', 'r') as file:<\/p>\n
    for line in file:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u521b\u5efa\u81ea\u5b9a\u4e49\u7684\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u6765\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u516b\u3001\u4f7f\u7528Pathlib\u6a21\u5757\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
Pathlib<\/code> \u662fPython 3.4\u5f15\u5165\u7684\u4e00\u4e2a\u6a21\u5757\uff0c\u7528\u4e8e\u5904\u7406\u6587\u4ef6\u548c\u76ee\u5f55\u8def\u5f84\uff1a<\/p>\n<\/p>\n
from pathlib import Path<\/p>\n
file_path = Path('example.txt')<\/p>\n
with file_path.open('r') as file:<\/p>\n
    for line in file:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
Pathlib<\/code> \u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u7b80\u6d01\u548c\u76f4\u89c2\u7684\u65b9\u5f0f\u6765\u5904\u7406\u6587\u4ef6\u8def\u5f84\u3002<\/p>\n<\/p>\n
\u4e5d\u3001\u4f7f\u7528fileinput\u6a21\u5757\u8bfb\u53d6\u591a\u4e2a\u6587\u4ef6<\/h3>\n<\/p>\n
\u5982\u679c\u9700\u8981\u8bfb\u53d6\u591a\u4e2a\u6587\u4ef6\uff0cfileinput<\/code> \u6a21\u5757\u975e\u5e38\u6709\u7528\uff1a<\/p>\n<\/p>\n
import fileinput<\/p>\n
for line in fileinput.input(files=['example1.txt', 'example2.txt']):<\/p>\n
    print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
fileinput.input()<\/code> \u53ef\u4ee5\u540c\u65f6\u5904\u7406\u591a\u4e2a\u6587\u4ef6\uff0c\u5e76\u9010\u884c\u8bfb\u53d6\u3002<\/p>\n<\/p>\n
\u5341\u3001\u4f7f\u7528pandas\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
\u5982\u679c\u9700\u8981\u5904\u7406\u5e26\u6709\u7279\u5b9a\u683c\u5f0f\u7684\u6570\u636e\u6587\u4ef6\uff08\u5982CSV\uff09\uff0cpandas<\/code> \u6a21\u5757\u975e\u5e38\u5f3a\u5927\uff1a<\/p>\n<\/p>\n
import pandas as pd<\/p>\n
df = pd.read_csv('example.csv')<\/p>\n
for index, row in df.iterrows():<\/p>\n
    print(row)<\/p>\n
<\/code><\/pre>\n<\/p>\n
pandas<\/code> \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u6570\u636e\u5206\u6790\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u5341\u4e00\u3001\u4f7f\u7528numpy\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
numpy<\/code> \u4e5f\u53ef\u4ee5\u7528\u4e8e\u8bfb\u53d6\u6570\u503c\u6570\u636e\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
import numpy as np<\/p>\n
data = np.loadtxt('example.txt', delimiter=',')<\/p>\n
for row in data:<\/p>\n
    print(row)<\/p>\n
<\/code><\/pre>\n<\/p>\n
numpy<\/code> \u9002\u7528\u4e8e\u5904\u7406\u5927\u91cf\u6570\u503c\u6570\u636e\u7684\u6587\u4ef6\u3002<\/p>\n<\/p>\n
\u5341\u4e8c\u3001\u4f7f\u7528csv\u6a21\u5757\u6309\u884c\u8bfb\u53d6CSV\u6587\u4ef6<\/h3>\n<\/p>\n
csv<\/code> \u6a21\u5757\u4e13\u95e8\u7528\u4e8e\u5904\u7406CSV\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
import csv<\/p>\n
with open('example.csv', 'r') as file:<\/p>\n
    reader = csv.reader(file)<\/p>\n
    for row in reader:<\/p>\n
        print(row)<\/p>\n
<\/code><\/pre>\n<\/p>\n
csv.reader<\/code> \u53ef\u4ee5\u65b9\u4fbf\u5730\u8bfb\u53d6CSV\u6587\u4ef6\uff0c\u5e76\u5c06\u6bcf\u4e00\u884c\u4f5c\u4e3a\u5217\u8868\u8fd4\u56de\u3002<\/p>\n<\/p>\n
\u5341\u4e09\u3001\u4f7f\u7528json\u6a21\u5757\u6309\u884c\u8bfb\u53d6JSON\u6587\u4ef6<\/h3>\n<\/p>\n
\u5982\u679c\u6587\u4ef6\u662fJSON\u683c\u5f0f\uff0cjson<\/code> \u6a21\u5757\u53ef\u4ee5\u6d3e\u4e0a\u7528\u573a\uff1a<\/p>\n<\/p>\n
import json<\/p>\n
with open('example.json', 'r') as file:<\/p>\n
    data = json.load(file)<\/p>\n
    for entry in data:<\/p>\n
        print(entry)<\/p>\n
<\/code><\/pre>\n<\/p>\n
json.load<\/code> \u53ef\u4ee5\u5c06JSON\u6587\u4ef6\u89e3\u6790\u4e3aPython\u5bf9\u8c61\u3002<\/p>\n<\/p>\n
\u5341\u56db\u3001\u6309\u884c\u8bfb\u53d6\u538b\u7f29\u6587\u4ef6<\/h3>\n<\/p>\n
\u5982\u679c\u6587\u4ef6\u662f\u538b\u7f29\u683c\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528 gzip<\/code> \u6a21\u5757\uff1a<\/p>\n<\/p>\n
import gzip<\/p>\n
with gzip.open('example.txt.gz', 'rt') as file:<\/p>\n
    for line in file:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
gzip.open<\/code> \u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6\u538b\u7f29\u6587\u4ef6\u3002<\/p>\n<\/p>\n
\u5341\u4e94\u3001\u6309\u884c\u8bfb\u53d6\u4e8c\u8fdb\u5236\u6587\u4ef6<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528 rb<\/code> \u6a21\u5f0f\uff1a<\/p>\n<\/p>\n
with open('example.bin', 'rb') as file:<\/p>\n
    while True:<\/p>\n
        line = file.readline()<\/p>\n
        if not line:<\/p>\n
            break<\/p>\n
        print(line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
rb<\/code> \u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u5e76\u6309\u5b57\u8282\u8bfb\u53d6\u3002<\/p>\n<\/p>\n
\u5341\u516d\u3001\u4f7f\u7528io\u6a21\u5757\u6309\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
io<\/code> \u6a21\u5757\u63d0\u4f9b\u4e86\u66f4\u5e95\u5c42\u7684\u6587\u4ef6\u64cd\u4f5c\u63a5\u53e3\uff1a<\/p>\n<\/p>\n
import io<\/p>\n
with io.open('example.txt', 'r', encoding='utf-8') as file:<\/p>\n
    for line in file:<\/p>\n
        print(line.strip())<\/p>\n
<\/code><\/pre>\n<\/p>\n
io.open<\/code> \u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u6587\u4ef6\u64cd\u4f5c\u9009\u9879\u3002<\/p>\n<\/p>\n
\u5341\u4e03\u3001\u4f7f\u7528configparser\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6<\/h3>\n<\/p>\n
configparser<\/code> \u6a21\u5757\u4e13\u95e8\u7528\u4e8e\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
import configparser<\/p>\n
config = configparser.ConfigParser()<\/p>\n
config.read('example.ini')<\/p>\n
for section in config.sections():<\/p>\n
    print(section)<\/p>\n
    for key, value in config.items(section):<\/p>\n
        print(key, value)<\/p>\n
<\/code><\/pre>\n<\/p>\n
configparser<\/code> \u975e\u5e38\u9002\u5408\u5904\u7406INI\u683c\u5f0f\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<\/p>\n
\u5341\u516b\u3001\u4f7f\u7528yaml\u6a21\u5757\u8bfb\u53d6YAML\u6587\u4ef6<\/h3>\n<\/p>\n
\u5982\u679c\u6587\u4ef6\u662fYAML\u683c\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528 yaml<\/code> \u6a21\u5757\uff1a<\/p>\n<\/p>\n
import yaml<\/p>\n
with open('example.yaml', 'r') as file:<\/p>\n
    data = yaml.SAFe<\/a>_load(file)<\/p>\n
    for entry in data:<\/p>\n
        print(entry)<\/p>\n
<\/code><\/pre>\n<\/p>\n
yaml.safe_load<\/code> \u53ef\u4ee5\u5c06YAML\u6587\u4ef6\u89e3\u6790\u4e3aPython\u5bf9\u8c61\u3002<\/p>\n<\/p>\n
\u5341\u4e5d\u3001\u4f7f\u7528xml.etree.ElementTree\u8bfb\u53d6XML\u6587\u4ef6<\/h3>\n<\/p>\n
xml.etree.ElementTree<\/code> \u6a21\u5757\u9002\u7528\u4e8e\u5904\u7406XML\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
import xml.etree.ElementTree as ET<\/p>\n
tree = ET.parse('example.xml')<\/p>\n
root = tree.getroot()<\/p>\n
for child in root:<\/p>\n
    print(child.tag, child.attrib)<\/p>\n
<\/code><\/pre>\n<\/p>\n
ElementTree<\/code> \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684XML\u5904\u7406\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u4e8c\u5341\u3001\u4f7f\u7528html.parser\u89e3\u6790HTML\u6587\u4ef6<\/h3>\n<\/p>\n
html.parser<\/code> \u6a21\u5757\u9002\u7528\u4e8e\u5904\u7406HTML\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
from html.parser import HTMLParser<\/p>\n
class MyHTMLParser(HTMLParser):<\/p>\n
    def handle_starttag(self, tag, attrs):<\/p>\n
        print("Start tag:", tag)<\/p>\n
    def handle_endtag(self, tag):<\/p>\n
        print("End tag  :", tag)<\/p>\n
    def handle_data(self, data):<\/p>\n
        print("Data     :", data)<\/p>\n
parser = MyHTMLParser()<\/p>\n
with open('example.html', 'r') as file:<\/p>\n
    for line in file:<\/p>\n
        parser.feed(line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
HTMLParser<\/code> \u63d0\u4f9b\u4e86HTML\u89e3\u6790\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u4e2d\u6309\u884c\u8bfb\u53d6\u6587\u4ef6\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u9009\u62e9\u9002\u5408\u81ea\u5df1\u9700\u6c42\u7684\u65b9\u6cd5\u5c24\u4e3a\u91cd\u8981\u3002\u4f7f\u7528with\u8bed\u53e5<\/strong> \u662f\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u7684\u6700\u4f73\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u7b80\u5355\u4e14\u5b89\u5168\u3002\u5bf9\u4e8e\u7279\u5b9a\u683c\u5f0f\u7684\u6587\u4ef6\uff0c\u5982CSV\u3001JSON\u3001XML\u7b49\uff0c\u53ef\u4ee5\u4f7f\u7528\u76f8\u5e94\u7684\u4e13\u7528\u6a21\u5757\u6765\u5904\u7406\uff0c\u80fd\u591f\u5927\u5927\u7b80\u5316\u4ee3\u7801\u5e76\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u6309\u884c\u8bfb\u53d6\u6587\u4ef6\u65f6\uff0cPython\u6709\u54ea\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u6309\u884c\u8bfb\u53d6\u6587\u4ef6\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u7ed3\u5408readline()<\/code>\u65b9\u6cd5\u3001readlines()<\/code>\u65b9\u6cd5\uff0c\u4ee5\u53ca\u4f7f\u7528for<\/code>\u5faa\u73af\u76f4\u63a5\u8fed\u4ee3\u6587\u4ef6\u5bf9\u8c61\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n
\u5728\u8bfb\u53d6\u5927\u6587\u4ef6\u65f6\uff0c\u5982\u4f55\u907f\u514d\u5185\u5b58\u6ea2\u51fa\uff1f<\/strong>
\u5904\u7406\u5927\u6587\u4ef6\u65f6\uff0c\u4f7f\u7528with open()<\/code>\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u8bfb\u53d6\u540e\u88ab\u6b63\u786e\u5173\u95ed\uff0c\u907f\u514d\u5185\u5b58\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u9010\u884c\u8bfb\u53d6\u7684\u65b9\u5f0f\uff0c\u6bd4\u5982for line in file:<\/code>\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u5185\u5b58\u4f7f\u7528\uff0c\u56e0\u4e3a\u6bcf\u6b21\u53ea\u4f1a\u52a0\u8f7d\u4e00\u884c\u6570\u636e\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n
\u5982\u4f55\u5904\u7406\u8bfb\u53d6\u6587\u4ef6\u65f6\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\uff1f<\/strong>
\u5728\u8bfb\u53d6\u6587\u4ef6\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u6587\u4ef6\u4e0d\u5b58\u5728\u3001\u6743\u9650\u4e0d\u8db3\u7b49\u5f02\u5e38\u60c5\u51b5\u3002\u53ef\u4ee5\u4f7f\u7528try-except<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u3002\u4f8b\u5982\uff0c\u5c1d\u8bd5\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u53ef\u4ee5\u6355\u83b7FileNotFoundError<\/code>\u5e76\u7ed9\u4e88\u7528\u6237\u53cb\u597d\u7684\u63d0\u793a\uff0c\u4ee5\u4fbf\u8fdb\u884c\u540e\u7eed\u5904\u7406\u6216\u9009\u62e9\u5176\u4ed6\u6587\u4ef6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u6309\u884c\u8bfb\u53d6\u6587\u4ef6\u5728Python\u4e2d\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5e38\u7528\u7684\u5305\u62ec\u4f7f\u7528open()\u51fd\u6570\u3001\u4f7f\u7528with\u8bed\u53e5\u3001\u4ee5\u53ca\u5229\u7528\u8fed\u4ee3\u5668\u8bfb\u53d6\u6587 […]","protected":false},"author":3,"featured_media":1181366,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1181355"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1181355"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1181355\/revisions"}],"predecessor-version":[{"id":1181367,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1181355\/revisions\/1181367"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1181366"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1181355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1181355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1181355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}