实战提升：PHP 7.0版解决开发者日常问题的高级教程

Real
World
Application
Development
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"《PHP.7.Real.World.Application.Development.2016.9》是一本专门针对PHP 7版本进行深入讲解的实战开发教程。该课程由三个模块组成，每个模块都是一个独立的小课程，旨在提升开发者的基础到中级乃至高级的PHP编程技能，特别是着重于PHP 7的新特性和优化。 第一模块，编程手册形式，包含超过80个实用的编程“菜谱”，旨在解决PHP开发者在日常工作中遇到的实实在在的问题，这些“菜谱”展示了如何利用PHP 7的新功能编写高效、易维护的代码。学习者将学会处理常见问题的解决方案，如性能优化和代码重构等。 第二模块关注的是应用性能和生产力的提升。课程会引导读者理解和运用PHP 7中的面向对象编程（OOP）概念，以及如何优化PHP 7应用程序和数据库性能。在这个模块中，学员还将接触到基准测试工具，以便对代码性能有更准确的评估和改进策略。 第三模块深入探讨模块化编程理念，指导如何在PHP代码中实现模块化设计，这有助于构建可读性强、易于管理、可重用且效率更高的代码。通过学习，开发者可以利用PHP 7的开源特性，创建模块化的函数和组件，提高软件项目的整体结构和质量。 整本书的版权信息表明，所有内容均需获得出版商Packt Publishing的书面许可才能复制或传播，以确保课程内容的准确性和原创性。尽管作者和出版社尽力确保信息的准确性，但课程不提供任何形式的保修，也不承担因课程内容导致的直接或间接损失的责任。 Packt Publishing在课程中尽力提供商标信息，但不能保证所有提及的公司和产品的商标权归属。《PHP.7.Real.World.Application.Development.2016.9》是一本实用且有针对性的教材，适合希望升级PHP技能并应用于实际项目中的开发者，无论是初学者还是经验丰富的专业人员。"

PHP.7.Real.World.Application.Development

2016-10-17 上传
Use new features of PHP 7 to solve practical, real-world problems faced by PHP developers like yourself every day PHP is a great language for developing web applications. It is essentially a server-...

PHP 7 Real World Application Development epub

2017-10-06 上传
PHP 7 Real World Application Development 英文epub 本资源转载自网络，如有侵权，请联系上传者或csdn删除 本资源转载自网络，如有侵权，请联系上传者或csdn删除

#include <stdio.h> // 定义复数类型 typedef struct { int real; // 实部 int imag; // 虚部 } Complex; int main() { Complex a, b, sum, product; // 从键盘输入 a 和 b 的值 printf("请输入 a 和 b 的值：\n"); scanf("%d+%dj", &a.real, &a.imag); scanf("%d+%dj", &b.real, &b.imag); // 计算和与积 sum.real = a.real + b.real; sum.imag = a.imag + b.imag; product.real = a.real * b.real - a.imag * b.imag; product.imag = a.real * b.imag + a.imag * b.real; // 输出结果 printf("%d+%dj %d+%dj", sum.real, sum.imag, product.real, product.imag); return 0; }优化这段代码，让他在虚部为负数时也能输出正确的答案

2023-06-03 上传
product.real = a.real * b.real - a.imag * b.imag; product.imag = a.real * b.imag + a.imag * b.real; // 输出结果，虚部为负数时需要特殊处理 if (product.imag >= 0) { printf("%d+%dj %d+%dj", sum....

优化这段代码#include <stdio.h> typedef struct Complex { int real; int imag; } Complex; int main() { Complex a, b, sum, product; char op; scanf("%d+%dj %d+%dj", &a.real, &a.imag, &b.real, &b.imag); sum.real = a.real + b.real; sum.imag = a.imag + b.imag; product.real = a.real * b.real - a.imag * b.imag; product.imag = a.real * b.imag + a.imag * b.real; printf("%d+%dj %d+%dj", sum.real, sum.imag, product.real, product.imag); return 0; }使输入的复数虚部为负数时也能计算出正确的值

2023-06-03 上传
scanf("%d%[^0-9] %d%[^0-9]j", &a.real, &op, &a.imag, &op); scanf("%d%[^0-9] %d%[^0-9]j", &b.real, &op, &b.imag, &op); sum.real = a.real + b.real; sum.imag = a.imag + b.imag; product.real = a.real...

#include <iostream> using namespace std; struct complex //复数的结构类型 { int real; int imgn; }; //函数sub和mul的原型 /********* Begin *********/ int sun(int c1,int c2); int mul(int c1,int c2); /********* End *********/ int main() { /********* Begin *********/ complex x,y,c3,c4; cin>>x.real>>x.imgn; cin>>y.real>>y.imgn; c3=sun(x,y); c4=mul(x,y); cout<<c3.real<<' '<<c3.imgn<<endl; cout<<c4.real<<' '<<c4.imgn<<endl; /********* End *********/ return 0; } //函数sub和mul的定义 /********* Begin *********/ complex sun(complex c1,complex c2){ complex c3; c3.real=c1.real-c2.real; c3.imgn=c1.imgn-c2.imgn; return c3; } complex mul(complex c1,complex c2){ complex c3; c3.real=c1.real*c2.real-c1.imgn*c2.imgn; c3.imgn=c1.imgn*c2.real+c1.real*c2.imgn; return c3; }

2023-06-08 上传
这段代码中存在两个问题： 1. 函数原型和函数定义的类型不匹配。... c3.real = c1.real * c2.real - c1.imgn * c2.imgn; c3.imgn = c1.real * c2.imgn + c1.imgn * c2.real; return c3; } ```

把下面代码的运算符重载改为友元函数形式#include<iostream> using namespace std; class complex { private: double real; double imag; public: complex(double r = 0.0, double i = 0.0); void print(); complex operator -=(complex c); complex operator *=(complex c); complex operator /=(complex c); complex operator ++(); complex operator ++(int); }; complex::complex(double r, double i) { real = r; imag = i; } complex complex::operator -=(complex c) { complex temp; temp.real = real - c.real; temp.imag = imag - c.imag; real = temp.real; imag = temp.imag; return temp; } complex complex::operator *=(complex c) { complex temp; temp.real = real * c.real - imag * c.imag; temp.imag = real * c.imag + imag * c.real; real = temp.real; imag = temp.imag; return temp; } complex complex::operator /=(complex c) { complex temp; double d; d = c.real * c.real + c.imag * c.imag; temp.real = (real * c.real + imag * c.imag) / d; temp.imag = (c.real * imag - real * c.imag) / d; real = temp.real; imag = temp.imag; return temp; } complex complex::operator ++() { complex temp; temp.real = ++real; temp.imag = ++imag; return temp; } complex complex::operator ++(int) { complex temp(real, imag); real++; imag++; return temp; } void complex::print() { cout << real; if (imag >= 0) cout << '+'; cout << imag << 'i' << endl; } int main() { complex A(30, 40), B(15, 30),C; C = A.operator++(1); cout << "C=A++后，C为："; C.print(); cout << "A为："; A.print(); C = A.operator++(); cout << "C=++A后，C为："; C.print(); cout << "A为："; A.print(); A *= B; cout << "A*=B后，A为:"; A.print(); A /= B; cout << "A/=B后，A为: "; A.print(); cout << "B为："; B.print(); return 0; }

2023-05-12 上传
temp.real = (c1.real * c2.real + c1.imag * c2.imag) / d; temp.imag = (c2.real * c1.imag - c1.real * c2.imag) / d; c1.real = temp.real; c1.imag = temp.imag; return temp; } complex operator ++...

#include<iostream> using namespace std; 3日 class complexf private: double real; double imag; public: complex (double r, double i) : real (r), imag(i)() friend complex operator* (complex &a, complex &b); friend complex operator/ (complex &a, complex &b); void print() LET MA 17 - 13 "<<imag<<")"<<endl: 15 complex operator* (complex &a, complex &b) 17日 18 21 complex |temp; temp.real=a.real*b. real-a.imag *b imag,temp.1mag=a.realtb.imagta.imag*b. real return temp: complex operator/(complex &a complex &b 24₴ ( 28 complex temp; double th t=1/(b.realtb.realtb.imag*b.imag) temp.reassla.realtb.realta.imag*b.imag)*t eaLa.lnag-a-realb.imag*t return temp; int main() 330 1 35 complex c1(2.5,3.7); c1.print(); complex c2(4.2,6.5); cz.printo: return 0:

2023-05-24 上传
temp.real = a.real * b.real - a.imag * b.imag; temp.imag = a.real * b.imag + a.imag * b.real; return temp; } complex operator/ (complex &a, complex &b) { double t = 1 / (b.real * b.real + b....

本题要求实现一个计算复数之积的简单函数。 函数接口定义： struct complex multiply(struct complex x, struct complex y); 其中struct complex是复数结构体，其定义如下： struct complex{ int real; int imag; }; 裁判测试程序样例： #include <stdio.h> struct complex{ int real; int imag; }; struct complex multiply(struct complex x, struct complex y); int main() { struct complex product, x, y; scanf("%d%d%d%d", &x.real, &x.imag, &y.real, &y.imag); product = multiply(x, y); printf("(%d+%di) * (%d+%di) = %d + %di\n", x.real, x.imag, y.real, y.imag, product.real, product.imag); return 0; } /* 你的代码将被嵌在这里 */ 输入样例： 3 4 5 6 输出样例： (3+4i) * (5+6i) = -9 + 38i

2023-06-01 上传
好的，我理解您的问题了... result.real = x.real * y.real - x.imag * y.imag; result.imag = x.real * y.imag + x.imag * y.real; return result; } ``` 这个函数的实现比较简单，就是按照复数乘法的定义来计算。

vnc-server-4.1.2.14.el5_6.6是realvnc吗

2023-12-14 上传
vnc-server-4.1.2.14.el5_6.6不是realvnc，它是一个基于VNC（Virtual Network Computing）协议的开源实现。它是Red Hat Enterprise Linux 5.x 版本中附带的VNC服务器软件包。这个版本通常用于提供远程桌面服务，允许...

for epoch in range(num_epochs): for i, real_images in enumerate(dataloader): # 训练判别器 real_images = real_images.to(device) #print(real_images.shape) labels_real = torch.full((real_images.size(0),), 1.0, device=device) labels_fake = torch.full((real_images.size(0),), 0.0, device=device) 这段代码运行之后，报 'list' object has no attribute 'to'的错误，该如何修改

2023-07-14 上传
你可以尝试将 `real_images` 转换为张量再进行操作。代码修改如下： ```python for epoch in range(num_epochs): for i, real_images_list in enumerate(dataloader): real_images = torch.tensor(real_images_...
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