{"id":1069194,"date":"2024-12-31T16:49:47","date_gmt":"2024-12-31T08:49:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1069194.html"},"modified":"2024-12-31T16:50:03","modified_gmt":"2024-12-31T08:50:03","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e7%94%bb%e5%87%ba%e5%9b%be%e6%98%be%e7%a4%ba%e5%9c%a8qt%e9%87%8c","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1069194.html","title":{"rendered":"\u5982\u4f55\u7528python\u753b\u51fa\u56fe\u663e\u793a\u5728qt\u91cc"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u753b\u51fa\u56fe\u663e\u793a\u5728qt\u91cc\"<\/p>\n

\u7528Python\u753b\u51fa\u56fe\u5e76\u663e\u793a\u5728Qt\u4e2d<\/strong>\uff0c\u53ef\u4ee5\u901a\u8fc7\u96c6\u6210Matplotlib\u548cPyQt5\u6765\u5b9e\u73b0\u3002Matplotlib\u662f\u4e00\u79cd\u7ed8\u56fe\u5e93\uff0c\u9002\u7528\u4e8e\u751f\u6210\u56fe\u8868\u548c\u5176\u4ed6\u4e8c\u7ef4\u6570\u636e\u53ef\u89c6\u5316\u56fe\u5f62\u3001PyQt5\u662fPython\u7684Qt\u5e93\uff0c\u7528\u4e8e\u521b\u5efa\u56fe\u5f62\u7528\u6237\u754c\u9762<\/strong>\u3002\u8fd9\u7bc7\u6587\u7ae0\u5c06\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u5305\u62ec\u5b89\u88c5\u6240\u9700\u7684\u5e93\u3001\u521b\u5efa\u57fa\u672c\u7684PyQt5\u5e94\u7528\u7a0b\u5e8f\u3001\u5728Qt\u4e2d\u96c6\u6210Matplotlib\u3001\u4ee5\u53ca\u4e00\u4e9b\u9ad8\u7ea7\u793a\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5\u6240\u9700\u5e93<\/h3>\n<\/p>\n

\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u786e\u4fdd\u5df2\u7ecf\u5b89\u88c5\u4e86matplotlib<\/code>\u548cPyQt5<\/code>\u5e93\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u901a\u8fc7pip\u5b89\u88c5\u5b83\u4eec\uff1a<\/p>\n<\/p>\n

pip install matplotlib PyQt5<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u521b\u5efa\u4e00\u4e2a\u57fa\u672c\u7684PyQt5\u5e94\u7528\u7a0b\u5e8f<\/h3>\n<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u57fa\u672c\u7684PyQt5\u5e94\u7528\u7a0b\u5e8f\u6846\u67b6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684PyQt5\u7a97\u53e3\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
import sys<\/p>\n
from PyQt5.QtWidgets import QApplication, QMAI<\/a>nWindow<\/p>\n
class MainWindow(QMainWindow):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        self.setWindowTitle("PyQt5 Matplotlib Example")<\/p>\n
        self.setGeometry(100, 100, 800, 600)<\/p>\n
def main():<\/p>\n
    app = QApplication(sys.argv)<\/p>\n
    window = MainWindow()<\/p>\n
    window.show()<\/p>\n
    sys.exit(app.exec_())<\/p>\n
if __name__ == "__main__":<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5728Qt\u4e2d\u96c6\u6210Matplotlib<\/h3>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u5c06Matplotlib\u5d4c\u5165\u5230PyQt5\u7a97\u53e3\u4e2d\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528FigureCanvasQTAgg<\/code>\u7c7b\u6765\u5b9e\u73b0\uff0c\u5b83\u662f\u4e00\u4e2aMatplotlib\u7684\u753b\u5e03\uff0c\u53ef\u4ee5\u4f5c\u4e3aPyQt5\u7684\u4e00\u4e2a\u5c0f\u90e8\u4ef6\u4f7f\u7528\u3002<\/p>\n<\/p>\n
import sys<\/p>\n
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget<\/p>\n
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas<\/p>\n
from matplotlib.figure import Figure<\/p>\n
class MplCanvas(FigureCanvas):<\/p>\n
    def __init__(self, parent=None, width=5, height=4, dpi=100):<\/p>\n
        fig = Figure(figsize=(width, height), dpi=dpi)<\/p>\n
        self.axes = fig.add_subplot(111)<\/p>\n
        super(MplCanvas, self).__init__(fig)<\/p>\n
class MainWindow(QMainWindow):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        self.setWindowTitle("PyQt5 Matplotlib Example")<\/p>\n
        self.setGeometry(100, 100, 800, 600)<\/p>\n
        canvas = MplCanvas(self, width=5, height=4, dpi=100)<\/p>\n
        canvas.axes.plot([0, 1, 2, 3], [10, 1, 20, 3])<\/p>\n
        layout = QVBoxLayout()<\/p>\n
        layout.addWidget(canvas)<\/p>\n
        widget = QWidget()<\/p>\n
        widget.setLayout(layout)<\/p>\n
        self.setCentralWidget(widget)<\/p>\n
def main():<\/p>\n
    app = QApplication(sys.argv)<\/p>\n
    window = MainWindow()<\/p>\n
    window.show()<\/p>\n
    sys.exit(app.exec_())<\/p>\n
if __name__ == "__main__":<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u6dfb\u52a0\u66f4\u591a\u529f\u80fd\u548c\u4ea4\u4e92<\/h3>\n<\/p>\n
\u4f60\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6269\u5c55\u8fd9\u4e2a\u793a\u4f8b\uff0c\u4ee5\u5305\u542b\u66f4\u591a\u590d\u6742\u7684\u529f\u80fd\u548c\u4ea4\u4e92\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u6dfb\u52a0\u6309\u94ae\u6765\u66f4\u65b0\u56fe\u8868\uff0c\u6216\u4f7f\u7528\u4e0d\u540c\u7684Matplotlib\u56fe\u8868\u7c7b\u578b\u3002<\/p>\n<\/p>\n
1. \u6dfb\u52a0\u6309\u94ae\u6765\u66f4\u65b0\u56fe\u8868<\/h4>\n<\/p>\n
import sys<\/p>\n
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton<\/p>\n
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas<\/p>\n
from matplotlib.figure import Figure<\/p>\n
class MplCanvas(FigureCanvas):<\/p>\n
    def __init__(self, parent=None, width=5, height=4, dpi=100):<\/p>\n
        fig = Figure(figsize=(width, height), dpi=dpi)<\/p>\n
        self.axes = fig.add_subplot(111)<\/p>\n
        super(MplCanvas, self).__init__(fig)<\/p>\n
class MainWindow(QMainWindow):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        self.setWindowTitle("PyQt5 Matplotlib Example")<\/p>\n
        self.setGeometry(100, 100, 800, 600)<\/p>\n
        self.canvas = MplCanvas(self, width=5, height=4, dpi=100)<\/p>\n
        self.canvas.axes.plot([0, 1, 2, 3], [10, 1, 20, 3])<\/p>\n
        self.button = QPushButton("Update Plot")<\/p>\n
        self.button.clicked.connect(self.update_plot)<\/p>\n
        layout = QVBoxLayout()<\/p>\n
        layout.addWidget(self.canvas)<\/p>\n
        layout.addWidget(self.button)<\/p>\n
        widget = QWidget()<\/p>\n
        widget.setLayout(layout)<\/p>\n
        self.setCentralWidget(widget)<\/p>\n
    def update_plot(self):<\/p>\n
        self.canvas.axes.cla()<\/p>\n
        self.canvas.axes.plot([0, 1, 2, 3], [3, 20, 1, 10])<\/p>\n
        self.canvas.draw()<\/p>\n
def main():<\/p>\n
    app = QApplication(sys.argv)<\/p>\n
    window = MainWindow()<\/p>\n
    window.show()<\/p>\n
    sys.exit(app.exec_())<\/p>\n
if __name__ == "__main__":<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u4f7f\u7528\u4e0d\u540c\u7684Matplotlib\u56fe\u8868\u7c7b\u578b<\/h4>\n<\/p>\n
\u4f60\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u8868\uff0c\u5982\u6563\u70b9\u56fe\u3001\u67f1\u72b6\u56fe\u3001\u997c\u56fe\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u663e\u793a\u4e86\u5982\u4f55\u7ed8\u5236\u4e00\u4e2a\u6563\u70b9\u56fe\uff1a<\/p>\n<\/p>\n
import sys<\/p>\n
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton<\/p>\n
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas<\/p>\n
from matplotlib.figure import Figure<\/p>\n
import numpy as np<\/p>\n
class MplCanvas(FigureCanvas):<\/p>\n
    def __init__(self, parent=None, width=5, height=4, dpi=100):<\/p>\n
        fig = Figure(figsize=(width, height), dpi=dpi)<\/p>\n
        self.axes = fig.add_subplot(111)<\/p>\n
        super(MplCanvas, self).__init__(fig)<\/p>\n
class MainWindow(QMainWindow):<\/p>\n
    def __init__(self):<\/p>\n
        super().__init__()<\/p>\n
        self.setWindowTitle("PyQt5 Matplotlib Example")<\/p>\n
        self.setGeometry(100, 100, 800, 600)<\/p>\n
        self.canvas = MplCanvas(self, width=5, height=4, dpi=100)<\/p>\n
        self.plot_scatter()<\/p>\n
        layout = QVBoxLayout()<\/p>\n
        layout.addWidget(self.canvas)<\/p>\n
        widget = QWidget()<\/p>\n
        widget.setLayout(layout)<\/p>\n
        self.setCentralWidget(widget)<\/p>\n
    def plot_scatter(self):<\/p>\n
        x = np.random.randn(100)<\/p>\n
        y = np.random.randn(100)<\/p>\n
        self.canvas.axes.scatter(x, y)<\/p>\n
        self.canvas.draw()<\/p>\n
def main():<\/p>\n
    app = QApplication(sys.argv)<\/p>\n
    window = MainWindow()<\/p>\n
    window.show()<\/p>\n
    sys.exit(app.exec_())<\/p>\n
if __name__ == "__main__":<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u4f60\u5df2\u7ecf\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528Python\u5728Qt\u4e2d\u663e\u793a\u56fe\u8868\u3002\u5173\u952e\u6b65\u9aa4\u5305\u62ec\u5b89\u88c5\u6240\u9700\u7684\u5e93\u3001\u521b\u5efa\u57fa\u672c\u7684PyQt5\u5e94\u7528\u7a0b\u5e8f\u3001\u5728Qt\u4e2d\u96c6\u6210Matplotlib\u3001\u4ee5\u53ca\u6269\u5c55\u5e94\u7528\u7a0b\u5e8f\u4ee5\u5305\u542b\u66f4\u591a\u529f\u80fd\u548c\u4ea4\u4e92<\/strong>\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5c55\u793a\u4e86\u5982\u4f55\u5c06Python\u5f3a\u5927\u7684\u6570\u636e\u53ef\u89c6\u5316\u80fd\u529b\u4e0e\u73b0\u4ee3\u56fe\u5f62\u7528\u6237\u754c\u9762\u7ed3\u5408\u8d77\u6765\uff0c\u4e3a\u521b\u5efa\u590d\u6742\u7684\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u575a\u5b9e\u7684\u57fa\u7840\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u5b9e\u73b0\u8fd9\u4e00\u6280\u672f\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Qt\u5e94\u7528\u7a0b\u5e8f\u4e2d\u96c6\u6210Python\u7ed8\u56fe\u529f\u80fd\uff1f<\/strong>
\u5728Qt\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528Matplotlib\u5e93\u6765\u5b9e\u73b0Python\u7ed8\u56fe\u529f\u80fd\u3002\u9996\u5148\uff0c\u786e\u4fdd\u5b89\u88c5\u4e86PyQt\u548cMatplotlib\u3002\u63a5\u7740\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2aQWidget\uff0c\u7528\u4e8e\u663e\u793aMatplotlib\u7ed8\u56fe\u3002\u901a\u8fc7\u5c06Matplotlib\u7684FigureCanvas\u5d4c\u5165\u5230QWidget\u4e2d\uff0c\u60a8\u5c31\u80fd\u5728Qt\u754c\u9762\u4e2d\u5c55\u793a\u7ed8\u56fe\u5185\u5bb9\u3002<\/p>\n
\u4f7f\u7528PyQt\u7ed8\u56fe\u65f6\uff0c\u5982\u4f55\u5904\u7406\u56fe\u5f62\u7684\u66f4\u65b0\uff1f<\/strong>
\u66f4\u65b0\u56fe\u5f62\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u91cd\u65b0\u7ed8\u5236FigureCanvas\u6765\u5b9e\u73b0\u3002\u9996\u5148\uff0c\u4fee\u6539\u6570\u636e\u5e76\u8c03\u7528Figure\u7684\u7ed8\u5236\u65b9\u6cd5\uff0c\u7136\u540e\u4f7f\u7528FigureCanvas\u7684draw()\u51fd\u6570\u66f4\u65b0\u663e\u793a\u3002\u786e\u4fdd\u5728\u66f4\u65b0\u6570\u636e\u540e\uff0c\u8c03\u7528update()\u65b9\u6cd5\u6765\u91cd\u65b0\u6e32\u67d3\u56fe\u5f62\u3002<\/p>\n
Python\u7ed8\u56fe\u5728Qt\u4e2d\u9047\u5230\u95ee\u9898\u65f6\uff0c\u5982\u4f55\u8c03\u8bd5\uff1f<\/strong>
\u8c03\u8bd5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528print\u8bed\u53e5\u6216logging\u6a21\u5757\u6765\u8f93\u51fa\u5173\u952e\u53d8\u91cf\u7684\u503c\uff0c\u5e2e\u52a9\u5b9a\u4f4d\u95ee\u9898\u6240\u5728\u3002\u68c0\u67e5Matplotlib\u548cQt\u7684\u517c\u5bb9\u6027\uff0c\u786e\u4fdd\u4f7f\u7528\u7684\u7248\u672c\u6ca1\u6709\u5df2\u77e5\u7684bug\u3002\u6b64\u5916\uff0c\u67e5\u770b\u63a7\u5236\u53f0\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u6709\u76f8\u5173\u9519\u8bef\u4fe1\u606f\uff0c\u6709\u52a9\u4e8e\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u7528Python\u753b\u51fa\u56fe\u5e76\u663e\u793a\u5728Qt\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u96c6\u6210Matplotlib\u548cPyQt5\u6765\u5b9e\u73b0\u3002Matplotlib\u662f […]","protected":false},"author":3,"featured_media":1069222,"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\/1069194"}],"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=1069194"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1069194\/revisions"}],"predecessor-version":[{"id":1069228,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1069194\/revisions\/1069228"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1069222"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1069194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1069194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1069194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}