{"id":1087522,"date":"2025-01-08T13:35:52","date_gmt":"2025-01-08T05:35:52","guid":{"rendered":""},"modified":"2025-01-08T13:35:55","modified_gmt":"2025-01-08T05:35:55","slug":"python%e4%b8%adinput%e7%a9%ba%e5%80%bc%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3-3","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1087522.html","title":{"rendered":"python\u4e2dinput\u7a7a\u503c\u5982\u4f55\u89e3\u51b3"},"content":{"rendered":"

\"python\u4e2dinput\u7a7a\u503c\u5982\u4f55\u89e3\u51b3\"<\/p>\n

\u5728Python\u4e2d\u5904\u7406input\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528try-except\u5757\u3001while\u5faa\u73af\u3001\u6761\u4ef6\u5224\u65ad<\/strong>\u7b49\u65b9\u6cd5\u6765\u786e\u4fdd\u7528\u6237\u8f93\u5165\u6709\u6548\u503c\u3002try-except\u5757<\/strong>\u53ef\u4ee5\u6355\u83b7\u5f02\u5e38\uff0cwhile\u5faa\u73af<\/strong>\u548c\u6761\u4ef6\u5224\u65ad<\/strong>\u53ef\u4ee5\u53cd\u590d\u63d0\u793a\u7528\u6237\u8f93\u5165\u76f4\u5230\u83b7\u5f97\u6709\u6548\u503c\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n

\u8981\u907f\u514d\u7528\u6237\u8f93\u5165\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u53cd\u590d\u8981\u6c42\u8f93\u5165\uff0c\u76f4\u5230\u83b7\u5f97\u975e\u7a7a\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

while True:<\/p>\n
    user_input = input("\u8bf7\u8f93\u5165\u4e00\u4e2a\u503c: ")<\/p>\n
    if user_input.strip():  # \u68c0\u67e5\u8f93\u5165\u662f\u5426\u4e3a\u7a7a<\/p>\n
        break<\/p>\n
    else:<\/p>\n
        print("\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u8bf7\u518d\u6b21\u8f93\u5165\u3002")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6837\u505a\u53ef\u4ee5\u786e\u4fdd\u7528\u6237\u4e0d\u4f1a\u8f93\u5165\u7a7a\u503c\uff0c\u7a0b\u5e8f\u4f1a\u4e00\u76f4\u63d0\u793a\u8f93\u5165\uff0c\u76f4\u5230\u83b7\u5f97\u6709\u6548\u8f93\u5165\u4e3a\u6b62\u3002<\/p>\n<\/p>\n
\u4e00\u3001TRY-EXCEPT\u5757<\/h3>\n<\/p>\n
\u4f7f\u7528try-except\u5757\u53ef\u4ee5\u6355\u83b7\u5f02\u5e38\u5e76\u5904\u7406\u8f93\u5165\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u5e0c\u671b\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n
while True:<\/p>\n
    try:<\/p>\n
        user_input = int(input("\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57: "))<\/p>\n
        break<\/p>\n
    except ValueError:<\/p>\n
        print("\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\u3002")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u68c0\u6d4b\u7a7a\u503c\uff0c\u8fd8\u53ef\u4ee5\u68c0\u6d4b\u65e0\u6548\u7684\u8f93\u5165\u7c7b\u578b\uff0c\u5e76\u63d0\u793a\u7528\u6237\u91cd\u65b0\u8f93\u5165\u3002<\/p>\n<\/p>\n
\u4e8c\u3001WHILE\u5faa\u73af\u4e0e\u6761\u4ef6\u5224\u65ad<\/h3>\n<\/p>\n
\u5728\u4f7f\u7528while\u5faa\u73af\u548c\u6761\u4ef6\u5224\u65ad\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u6807\u5fd7\u53d8\u91cf\uff0c\u5f53\u8f93\u5165\u6709\u6548\u65f6\u6539\u53d8\u5176\u503c\uff0c\u4ece\u800c\u8df3\u51fa\u5faa\u73af\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
valid_input = False<\/p>\n
while not valid_input:<\/p>\n
    user_input = input("\u8bf7\u8f93\u5165\u4e00\u4e2a\u503c: ")<\/p>\n
    if user_input.strip():  # \u68c0\u67e5\u8f93\u5165\u662f\u5426\u4e3a\u7a7a<\/p>\n
        valid_input = True<\/p>\n
    else:<\/p>\n
        print("\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u8bf7\u518d\u6b21\u8f93\u5165\u3002")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u540c\u6837\u53ef\u4ee5\u6709\u6548\u5730\u786e\u4fdd\u7528\u6237\u8f93\u5165\u6709\u6548\u7684\u503c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u8f93\u5165\u9a8c\u8bc1\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u7528\u6237\u8f93\u5165\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u9700\u8981\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6709\u6548\u7684\u90ae\u7bb1\u5730\u5740\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n
import re<\/p>\n
emAI<\/a>l_pattern = re.compile(r"[^@]+@[^@]+\\.[^@]+")<\/p>\n
while True:<\/p>\n
    user_input = input("\u8bf7\u8f93\u5165\u90ae\u7bb1\u5730\u5740: ")<\/p>\n
    if email_pattern.match(user_input):<\/p>\n
        break<\/p>\n
    else:<\/p>\n
        print("\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u6709\u6548\u7684\u90ae\u7bb1\u5730\u5740\u3002")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u786e\u4fdd\u7528\u6237\u8f93\u5165\u7b26\u5408\u7279\u5b9a\u7684\u683c\u5f0f\u3002<\/p>\n<\/p>\n
\u56db\u3001\u51fd\u6570\u5c01\u88c5<\/h3>\n<\/p>\n
\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u590d\u7528\u6027\uff0c\u53ef\u4ee5\u5c06\u8f93\u5165\u9a8c\u8bc1\u903b\u8f91\u5c01\u88c5\u5230\u4e00\u4e2a\u51fd\u6570\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
def get_valid_input(prompt, validation_func):<\/p>\n
    while True:<\/p>\n
        user_input = input(prompt)<\/p>\n
        if validation_func(user_input):<\/p>\n
            return user_input<\/p>\n
        else:<\/p>\n
            print("\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u518d\u6b21\u8f93\u5165\u3002")<\/p>\n
def is_non_empty(s):<\/p>\n
    return bool(s.strip())<\/p>\n
user_input = get_valid_input("\u8bf7\u8f93\u5165\u4e00\u4e2a\u503c: ", is_non_empty)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8ba9\u6211\u4eec\u66f4\u7075\u6d3b\u5730\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u8f93\u5165\u9a8c\u8bc1\u3002<\/p>\n<\/p>\n
\u4e94\u3001GUI\u5e94\u7528\u4e2d\u7684\u8f93\u5165\u9a8c\u8bc1<\/h3>\n<\/p>\n
\u5728\u56fe\u5f62\u7528\u6237\u754c\u9762\uff08GUI\uff09\u5e94\u7528\u4e2d\uff0c\u8f93\u5165\u9a8c\u8bc1\u901a\u5e38\u5728\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u4e2d\u8fdb\u884c\u3002\u4f8b\u5982\uff0c\u5728\u4f7f\u7528Tkinter\u65f6\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n
import tkinter as tk<\/p>\n
from tkinter import messagebox<\/p>\n
def validate_input():<\/p>\n
    user_input = entry.get()<\/p>\n
    if not user_input.strip():<\/p>\n
        messagebox.showerror("\u8f93\u5165\u9519\u8bef", "\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a")<\/p>\n
    else:<\/p>\n
        print("\u7528\u6237\u8f93\u5165:", user_input)<\/p>\n
root = tk.Tk()<\/p>\n
entry = tk.Entry(root)<\/p>\n
entry.pack()<\/p>\n
tk.Button(root, text="\u63d0\u4ea4", command=validate_input).pack()<\/p>\n
root.mainloop()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728\u7528\u6237\u63d0\u4ea4\u8868\u5355\u65f6\u8fdb\u884c\u9a8c\u8bc1\uff0c\u5e76\u901a\u8fc7\u5f39\u7a97\u63d0\u793a\u7528\u6237\u8f93\u5165\u9519\u8bef\u3002<\/p>\n<\/p>\n
\u516d\u3001web\u5e94\u7528\u4e2d\u7684\u8f93\u5165\u9a8c\u8bc1<\/h3>\n<\/p>\n
\u5728web\u5e94\u7528\u4e2d\uff0c\u8f93\u5165\u9a8c\u8bc1\u901a\u5e38\u5728\u524d\u7aef\u548c\u540e\u7aef\u540c\u65f6\u8fdb\u884c\u3002\u524d\u7aef\u53ef\u4ee5\u4f7f\u7528JavaScript\u8fdb\u884c\u57fa\u672c\u7684\u8f93\u5165\u9a8c\u8bc1\uff0c\u800c\u540e\u7aef\u53ef\u4ee5\u4f7f\u7528\u670d\u52a1\u5668\u7aef\u8bed\u8a00\uff08\u5982Python\uff09\u8fdb\u884c\u66f4\u4e25\u683c\u7684\u9a8c\u8bc1\u3002<\/p>\n<\/p>\n
<form id="myForm" onsubmit="return validateForm()"><\/p>\n
    <input type="text" id="inputField" name="inputField"><\/p>\n
    <input type="submit" value="\u63d0\u4ea4"><\/p>\n
<\/form><\/p>\n
<script><\/p>\n
function validateForm() {<\/p>\n
    var x = document.getElementById("inputField").value;<\/p>\n
    if (x == "") {<\/p>\n
        alert("\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a");<\/p>\n
        return false;<\/p>\n
    }<\/p>\n
    return true;<\/p>\n
}<\/p>\n
<\/script><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u540e\u7aef\uff0c\u4f7f\u7528Flask\u6846\u67b6\u8fdb\u884c\u9a8c\u8bc1\uff1a<\/p>\n<\/p>\n
from flask import Flask, request, render_template_string<\/p>\n
app = Flask(__name__)<\/p>\n
@app.route('\/', methods=['GET', 'POST'])<\/p>\n
def index():<\/p>\n
    if request.method == 'POST':<\/p>\n
        user_input = request.form['inputField']<\/p>\n
        if not user_input.strip():<\/p>\n
            return "\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a", 400<\/p>\n
        return f"\u7528\u6237\u8f93\u5165: {user_input}"<\/p>\n
    return render_template_string('''<\/p>\n
        <form method="post"><\/p>\n
            <input type="text" name="inputField"><\/p>\n
            <input type="submit" value="\u63d0\u4ea4"><\/p>\n
        <\/form><\/p>\n
    ''')<\/p>\n
if __name__ == '__main__':<\/p>\n
    app.run()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u786e\u4fdd\u4e86\u5373\u4f7f\u7528\u6237\u7ed5\u8fc7\u4e86\u524d\u7aef\u9a8c\u8bc1\uff0c\u540e\u7aef\u4ecd\u7136\u80fd\u591f\u8fdb\u884c\u6709\u6548\u7684\u8f93\u5165\u9a8c\u8bc1\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u6709\u6548\u7684\u8f93\u5165\u9a8c\u8bc1\u662f\u786e\u4fdd\u7a0b\u5e8f\u5065\u58ee\u6027\u7684\u91cd\u8981\u624b\u6bb5\u3002\u5728Python\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528try-except\u5757\u3001while\u5faa\u73af\u4e0e\u6761\u4ef6\u5224\u65ad\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u51fd\u6570\u5c01\u88c5\u3001\u4ee5\u53ca\u5728GUI\u548cweb\u5e94\u7528\u4e2d\u8fdb\u884c\u8f93\u5165\u9a8c\u8bc1\u3002\u65e0\u8bba\u662f\u54ea\u79cd\u65b9\u6cd5\uff0c\u76ee\u6807\u90fd\u662f\u786e\u4fdd\u7528\u6237\u8f93\u5165\u7684\u6709\u6548\u6027\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u53ef\u9760\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5904\u7406\u7528\u6237\u8f93\u5165\u7684\u7a7a\u503c\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u5f53\u4f7f\u7528input()<\/code>\u51fd\u6570\u83b7\u53d6\u7528\u6237\u8f93\u5165\u65f6\uff0c\u5982\u679c\u7528\u6237\u76f4\u63a5\u6309\u4e0b\u56de\u8f66\u952e\uff0c\u8f93\u5165\u7684\u503c\u5c06\u4f1a\u662f\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u3002\u4e3a\u4e86\u5904\u7406\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528if<\/code>\u8bed\u53e5\u6765\u68c0\u6d4b\u8f93\u5165\u662f\u5426\u4e3a\u7a7a\uff0c\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u63d0\u793a\u6216\u91cd\u8bd5\u673a\u5236\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u6765\u53cd\u590d\u8bf7\u6c42\u7528\u6237\u8f93\u5165\uff0c\u76f4\u5230\u8f93\u5165\u6709\u6548\u4e3a\u6b62\u3002<\/p>\n
\u5982\u4f55\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u4e3a\u7a7a\u5e76\u63d0\u793a\u7528\u6237\uff1f<\/strong>
\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u6761\u4ef6\u8bed\u53e5\u6765\u68c0\u67e5\u7528\u6237\u8f93\u5165\u7684\u503c\u3002\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u4f7f\u7528print()<\/code>\u51fd\u6570\u7ed9\u51fa\u63d0\u793a\uff0c\u63d0\u9192\u7528\u6237\u8f93\u5165\u6709\u6548\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u52a0\u5165\u5982\u4e0b\u903b\u8f91\uff1aif not user_input: print("\u8f93\u5165\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u8bf7\u91cd\u65b0\u8f93\u5165\u3002")<\/code>\u3002<\/p>\n
\u6709\u6ca1\u6709\u65b9\u6cd5\u53ef\u4ee5\u4e3a\u7528\u6237\u8f93\u5165\u63d0\u4f9b\u9ed8\u8ba4\u503c\uff1f<\/strong>
\u786e\u5b9e\u53ef\u4ee5\u901a\u8fc7\u5728input()<\/code>\u51fd\u6570\u4e2d\u63d0\u4f9b\u4e00\u4e2a\u9ed8\u8ba4\u503c\u6765\u7b80\u5316\u8f93\u5165\u8fc7\u7a0b\u3002\u53ef\u4ee5\u5728\u63d0\u793a\u4fe1\u606f\u4e2d\u544a\u77e5\u7528\u6237\u53ef\u4ee5\u6309\u56de\u8f66\u952e\u63a5\u53d7\u9ed8\u8ba4\u503c\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1auser_input = input("\u8bf7\u8f93\u5165\u60a8\u7684\u540d\u5b57\uff08\u9ed8\u8ba4\u4e3a'\u65e0\u540d\u6c0f'\uff09\uff1a") or '\u65e0\u540d\u6c0f'<\/code>\u3002\u8fd9\u6837\uff0c\u5982\u679c\u7528\u6237\u4e0d\u8f93\u5165\u4efb\u4f55\u5185\u5bb9\uff0cuser_input<\/code>\u5c06\u4f1a\u88ab\u8d4b\u503c\u4e3a'\u65e0\u540d\u6c0f'\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5904\u7406input\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528try-except\u5757\u3001while\u5faa\u73af\u3001\u6761\u4ef6\u5224\u65ad\u7b49\u65b9\u6cd5\u6765\u786e\u4fdd\u7528\u6237\u8f93 […]","protected":false},"author":3,"featured_media":1087532,"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\/1087522"}],"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=1087522"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1087522\/revisions"}],"predecessor-version":[{"id":1087534,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1087522\/revisions\/1087534"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1087532"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1087522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1087522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1087522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}