我制作的程序可以从纺织品（名为30eapril.txt）读取一些足球队的信息，并在创建一些团队对象时使用这些数据。我想知道如何让程序读取纺织品中的团队数量并创建它们的对象。到目前为止我写的代码有效，但有很多重复的部分！
class team:
def __init__(self, teamdata):
self.name = teamdata[0]
self.wins = teamdata[1]
self.drawn = teamdata[2]
self.losses = teamdata[3]
def __repr__(self):
return self.name.ljust(15) + '{} {} {}'.format(self.wins, self.drawn, self.losses)
laglista = []
with open('30eapril.txt', 'rt') as file:
for line in file:
laglista.append(line)
team1data = (laglista[0]).split()
team2data = (laglista[1]).split()
team3data = (laglista[2]).split()
team4data = (laglista[3]).split()
lag1 = team(team1data)
lag2 = team(team2data)
lag3 = team(team3data)
lag4 = team(team4data)
print(lag1)
print(lag2)
print(lag3)
print(lag4)
这就是文本文件中的内容
Arsenal 2 1 0
Manchester 2 0 0
Liverpool 0 1 2
Newcastle 0 0 2
希望有人可以提供帮助！ //彼得
答案 0 :(得分：2)
缩短代码:(当然可以更好）
#include "myHeaderGL.h"
#include <cstdlib>
#include <gl/GL.h>
#include <gl/GLU.h>// not used in this example
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
return window.WndProc(hWnd, message, wParam, lParam);
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
POINT windowPosition = { 100, 100 };
POINT windowSize = { 800, 600 };
if (!window.Initialize(hInstance, windowPosition, windowSize))
{
MessageBox(NULL, "Initialisation fail.", "OpenGL Application", MB_OK | MB_ICONERROR);
return EXIT_FAILURE;
}
else return window.Run();
}
LRESULT Window::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_PAINT:
RECT rect;
GetClientRect(hWnd, &rect);
clientWidh = rect.right - rect.left;
clientHeight = rect.bottom - rect.top;
break;
default:
return(DefWindowProc(hWnd, message, wParam, lParam));
}
return 0L;
}
LRESULT WindowGL::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
long result = Window::WndProc(hWnd, message, wParam, lParam);
switch (message)
{
case WM_CREATE:
if (!InitWGL(hWnd))
{
MessageBox(NULL, "Render context fail to load", "My OpenGL", MB_OK | MB_ICONERROR);
return EXIT_FAILURE;
}
SetScene(false);
break;
case WM_DESTROY:
DestroyWGL();
break;
case WM_SIZE:
SetScene(false);
break;
case WM_PAINT:
Render();
ValidateRect(hWnd, NULL);
break;
//default:
//return (DefWindowProc(hWnd, message, wParam, lParam));
}
return result;
}
bool Window::Initialize(HINSTANCE appHandle, POINT windowPosition, POINT windowSize)
{
char windowName[] = "My 1 OpenGL";
WNDCLASSEX wc;
wc.cbSize = sizeof(wc);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)::WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = appHandle;
wc.hIcon = NULL;
wc.hIconSm = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = windowName;
if (RegisterClassEx(&wc) == 0) return false;
hwnd = CreateWindow(
windowName,
windowName,
WS_OVERLAPPEDWINDOW,
windowPosition.x, windowPosition.y,
windowSize.x, windowSize.y,
NULL,
NULL,
appHandle,
NULL
);
if (!hwnd) return false;
ShowWindow(hwnd, SW_SHOW);
UpdateWindow(hwnd);
return true;
}
WPARAM Window::Run()
{
MSG msg = {0};
while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
window.Render();
}
return msg.wParam;
}
bool WindowGL::SetPixels(HDC handleDC) const
{
PIXELFORMATDESCRIPTOR pfd;
ZeroMemory(&pfd, sizeof(pfd));
pfd.nVersion = 1;
pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
int pixFormat = ChoosePixelFormat(handleDC, &pfd);
if (pixFormat == 0) return false;
if (!SetPixelFormat(handleDC, pixFormat, &pfd)) return false;
return true;
}
bool WindowGL::InitWGL(HWND hwnd)
{
handleDC= ::GetDC(hwnd);
if (!SetPixels(handleDC)) return false;
handleRC = wglCreateContext(handleDC);
if (handleRC == NULL) return false;
if (!wglMakeCurrent(handleDC, handleRC)) return false;
return true;
}
void WindowGL::SetScene(bool isometricProjection)
{
glViewport(0, 0, clientWidh, clientHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float wsp = clientHeight / (float)clientWidh;
if (!isometricProjection)
glFrustum(-1.0f, 1.0f, wsp*-1.0f, wsp*1.0f, 1.0f, 10.0f);
else
glOrtho(-1.0f, 1.0f, wsp*-1.0f, wsp*1.0f, 1.0f, 10.0f);
glMatrixMode(GL_MODELVIEW);
glEnable(GL_DEPTH_TEST);
}
void WindowGL::DestroyWGL()
{
wglMakeCurrent(NULL, NULL);
wglDeleteContext(handleRC);
::ReleaseDC(hwnd, handleDC);
}
void WindowGL::Render()
{
const float x0 = 1.0f;
const float y0 = 1.0f;
const float z0 = 1.0f;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -3.0f);
glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
glBegin(GL_TRIANGLES);
glVertex3f(-x0, -y0, 0.0f);
glVertex3f( x0, -y0, 0.0f);
glVertex3f(0.0f, y0, 0.0f);
glEnd();
SwapBuffers(handleDC);
}
您无需知道文件的行数。
使用相同的'30eapril.txt'内容，输出为：
#!/usr/bin/env python3
class team:
def __init__(self, teamdata):
self.name, self.wins, self.drawn, self.losses = teamdata
def __repr__(self):
return self.name.ljust(15) + '{} {} {}'.format(self.wins, self.drawn, self.losses)
lag = []
with open('30eapril.txt', 'rt') as file:
for line in file:
lag.append(team(line.split()))
#print("Number of teams: " + str(len(lag)))
for l in lag:
print(l)
'30eapril.txt'上的相同脚本有一个额外的行：
$ ./test_script3.py
Arsenal 2 1 0
Manchester 2 0 0
Liverpool 0 1 2
Newcastle 0 0 2