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package com.apple.browser;
 
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
 
    private WebView webView;
    private Activity activity;
 
    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        activity = this;
 
        webView = (WebView) findViewById(R.id.webview);
        webView.loadUrl("file:///android_asset/index.html");
 
        final WebSettings settings = webView.getSettings();
        settings.setJavaScriptCanOpenWindowsAutomatically(true);
        settings.setJavaScriptEnabled(true);
        settings.setSupportZoom(true);
 
        webView.addJavascriptInterface(new JSInvokeClass(), "js2java");
    }
 
    public final class JSInvokeClass {
        public void back() {
            // activity.finish();
            Toast.makeText(activity, "通过js调用的Java方法", Toast.LENGTH_SHORT).show();
        }
    }
}

2020-03-09T12:27:43 点赞:0

在 [教程]如何用Python,从0建立一个自己的网站-P2 中回复

package com.apple.browser;
 
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
 
    private WebView webView;
    private Activity activity;
 
    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        activity = this;
 
        webView = (WebView) findViewById(R.id.webview);
        webView.loadUrl("file:///android_asset/index.h喵l");
 
        final WebSettings settings = webView.getSettings();
        settings.setJavaScriptCanOpenWindowsAutomatically(true);
        settings.setJavaScriptEnabled(true);
        settings.setSupportZoom(true);
 
        webView.addJavascriptInterface(new JSInvokeClass(), "js2java");
    }
 
    public final class JSInvokeClass {
        public void back() {
            // activity.finish();
            Toast.makeText(activity, "通过js调用的Java方法", Toast.LENGTH_SHORT).show();
        }
    }
}

2020-03-09T12:29:08 点赞:0

在来来来，各位玩Python的都在评论区公布奇葩代码中回复

#-*- coding: utf-8 -*-
from itertools import product

import numpy as np
import matplotlib.pyplot as plt

from sklearn import datasets
from sklearn.tree import DecisionTreeClassifier


iris = datasets.load_iris()
X = iris.data[:, [0, 2]]
y = iris.target

# 训练模型
clf = DecisionTreeClassifier(max_depth=4)
#拟合模型
clf.fit(X, y)

x_min, x_max = X[:, 0].min() - 1, X[:, 0].max() + 1
y_min, y_max = X[:, 1].min() - 1, X[:, 1].max() + 1
xx, yy = np.meshgrid(np.arange(x_min, x_max, 0.1),
                     np.arange(y_min, y_max, 0.1))

Z = clf.predict(np.c_[xx.ravel(), yy.ravel()])
Z = Z.reshape(xx.shape)

plt.contourf(xx, yy, Z, alpha=0.4)
plt.scatter(X[:, 0], X[:, 1], c=y, alpha=0.8)
plt.show()

2020-03-09T12:32:09 点赞:0

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