如何在点击按钮后清除屏幕？

我试图建立一个基于菜单的程序，如果我点击一个按钮，它对应于一个功能;它会执行一定的条件。但是，我无法获得按钮本身的工作。我希望拥有它，以便当我点击按钮时，屏幕将以另一种颜色填充，以便我可以使用其所点击的任何功能显示另一个屏幕。我在下面添加了我的代码;任何帮助，非常感谢！如何在点击按钮后清除屏幕？

这是我一直有麻烦的按钮：

def arrayIntro(): 
intro = True 
while intro: 
    for event in pygame.event.get(): 
     if event.type == pygame.QUIT: 
      pygame.quit() 
      sys.exit() 
     if event.type == pygame.MOUSEBUTTONUP: 
      mousePosition = pygame.mouse.get_pos()        

    screen.fill(MUTEDBLUE) 

    textChoice = pygame.font.SysFont('americantypewriter', 20) 

    mousePosition = pygame.mouse.get_pos() 
    mouseClick = pygame.mouse.get_pressed() 

#Top Row Draw Rects   

    if 50+250 > mousePosition[0] > 50 and 50 + 100 > mousePosition[1] > 50: 
     pygame.draw.rect(screen, GRAY, (50, 50, 250, 100)) 
    else: 
     pygame.draw.rect(screen, WHITE, (50, 50, 250, 100)) 

    enterInt = textChoice.render("enterInt", True, NAVYBLUE) 
    screen.blit(enterInt, (135, 90)) 

    if mouseClick[0] ==1: 
     screen.fill(MUTEDBLUE)

但是如果需要的话，这里是我的所有代码：

#Import the necessary modules 
import pygame 
import sys 
import os 

#Initialize pygame 
pygame.init() 

# Set the size for the surface (screen) 
screenSize = (900,750) 
screen = pygame.display.set_mode((screenSize),0) 

# Set the caption for the screen 
pygame.display.set_caption("Array") 

#Define Colours 
WHITE = (255,255,255) 
BLUE = (0,0,255) 
BLACK = (0,0,0) 
GRAY = (128, 128, 128) 
MAROON = (128, 0, 0) 
NAVYBLUE = (0, 0, 128) 
OLIVE = (128, 128, 0) 
PURPLE = (128, 0, 128) 
TEAL = (0,128,128) 
PINK = (226,132,164) 
MUTEDBLUE = (155,182,203) 
PLUM = (221,160,221) 


def selectedFirst(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def enterInt(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def display(): 
    runSecond = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def countInt(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def displayReverse(): 

    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def sumInt(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def average(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def findMaxORfindMin(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def search(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def writeToText(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def fillFromText(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def searchReplace(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def shuffleArray(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def wordCount(): 
    runFirst = True 
    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def arrayIntro(): 
    buttonenterInt = pygame.Rect(50, 50, 250, 100) 
    buttondisplay =pygame.Rect(325, 50, 250, 100) 
    buttoncountInt = pygame.Rect(600, 50, 250, 100) 

    buttondisplayReverse = pygame.Rect(50, 250, 250, 100) 
    buttonsumInt = pygame.Rect(325, 250, 250, 100) 
    buttonaverage = pygame.Rect(600, 250, 250, 100) 

    buttonfindMaxORfindMin = pygame.Rect(50, 450, 250, 100) 
    buttonsearch = pygame.Rect(325, 450, 250, 100) 
    buttonwriteToText= pygame.Rect(600, 450, 250, 100) 

    buttonfillFromText =pygame.Rect(50, 640, 250, 100) 
    buttonsearchReplace = pygame.Rect(325, 640, 250, 100) 
    buttonwordCount = pygame.Rect(600, 640, 250, 100) 

    intro = True 
    while intro: 
     mousePosition = pygame.mouse.get_pos() 
     screen.fill(MUTEDBLUE) 
     textChoice = pygame.font.SysFont('americantypewriter', 20) 

     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 

      if (event.type == pygame.MOUSEBUTTONDOWN and event.button == 1): 
       clicked = pygame.mouse.get_pos() 

       if buttonenterInt.collidepoint(clicked): 
        selectedFirst() 

       elif buttondisplay.collidepoint(clicked): 
        display() 

       elif buttoncountInt.collidepoint(clicked): 
        countInt() 

       elif buttondisplayReverse.collidepoint(clicked): 
        displayReverse() 

       elif buttonsumInt.collidepoint(clicked): 
        sumInt() 

       elif buttonaverage.collidepoint(clicked): 
        average() 

       elif buttonfindMaxORfindMin.collidepoint(clicked): 
        findMaxORfindMin() 

       elif buttonsearch.collidepoint(clicked): 
        search() 

       elif buttonwriteToText.collidepoint(clicked): 
        writeToText() 

       elif buttonfillFromText.collidepoint(clicked): 
        fillFromText() 

       elif buttonsearchReplace.collidepoint(clicked): 
        searchReplace() 

       elif buttonshuffleArray.collidepoint(clicked): 
        shuffleArray() 

       elif buttonwordCount.collidepoint(clicked): 
        wordCount() 
######################################################################################### 
#Top Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (50, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 50, 250, 100)) 

     enterInt = textChoice.render("enterInt", True, NAVYBLUE) 
     screen.blit(enterInt, (135, 90)) 

     if 325+250 > mousePosition[0] > 325 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (325, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 50, 250, 100)) 

     display = textChoice.render("display", True, NAVYBLUE) 
     screen.blit(display, (414, 90)) 

     if 600+250 > mousePosition[0] > 600 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (600, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 50, 250, 100)) 

     countInt = textChoice.render("countInt", True, NAVYBLUE) 
     screen.blit(countInt, (680, 90)) 

######################################################################################### 
#Middle Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (50, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 250, 250, 100)) 

     displayReverse = textChoice.render("displayReverse", True, NAVYBLUE) 
     screen.blit(displayReverse, (102, 287)) 

     if 325+250 > mousePosition[0] > 325 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (325, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 250, 250, 100)) 

     sumInt = textChoice.render("sumInt", True, NAVYBLUE) 
     screen.blit(sumInt, (410, 287)) 

     if 600+250 > mousePosition[0] > 600 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (600, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 250, 250, 100)) 

     average = textChoice.render("average", True, NAVYBLUE) 
     screen.blit(average, (685, 287)) 

######################################################################################### 
#Middle Bottom Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (50, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 450, 250, 100)) 

     findMaxORfindMin = textChoice.render("findMax/findMin", True, NAVYBLUE) 
     screen.blit(findMaxORfindMin, (95, 488)) 

     if 325+250 > mousePosition[0] > 325 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (325, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 450, 250, 100)) 

     search = textChoice.render("search", True, NAVYBLUE) 
     screen.blit(search, (417, 488)) 

     if 600+250 > mousePosition[0] > 600 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (600, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 450, 250, 100)) 

     writeToText = textChoice.render("writeToText", True, NAVYBLUE) 
     screen.blit(writeToText, (665, 488)) 

######################################################################################### 
#Bottom Row Draw Rects 

     if 50+250 > mousePosition[0] > 50 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (50, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 640, 250, 100)) 

     fillFromText = textChoice.render("fillFromText", True, NAVYBLUE) 
     screen.blit(fillFromText, (115, 680)) 

     if 325+250 > mousePosition[0] > 325 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (325, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 640, 250, 100)) 

     searchReplace = textChoice.render("searchReplace", True, NAVYBLUE) 
     screen.blit(searchReplace, (382, 680)) 

     if 600+250 > mousePosition[0] > 600 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (600, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 640, 250, 100)) 

     wordCount = textChoice.render("wordCount", True, NAVYBLUE) 
     screen.blit(wordCount, (670, 680)) 

     pygame.display.update() 
######################################################################################### 
    eval(selected) 

arrayIntro()

来源

2017-06-11 Student

while循环不断无限期地运行。在当前代码中，您检测到鼠标单击，然后使屏幕变蓝但只是一瞬间，然后它继续下一个函数，直到它结束，循环继续，从而完全发生在最后一次迭代中发生的事情。

请看下面的代码。我改成了一个小

#Import the necessary modules 
import pygame 
import sys 
import os 

#Initialize pygame 
pygame.init() 

# Set the size for the surface (screen) 
screenSize = (900,750) 
screen = pygame.display.set_mode((screenSize),0) 

# Set the caption for the screen 
pygame.display.set_caption("Array") 

#Define Colours 
WHITE = (255,255,255) 
BLUE = (0,0,255) 
BLACK = (0,0,0) 
GRAY = (128, 128, 128) 
MAROON = (128, 0, 0) 
NAVYBLUE = (0, 0, 128) 
OLIVE = (128, 128, 0) 
PURPLE = (128, 0, 128) 
TEAL = (0,128,128) 
PINK = (226,132,164) 
MUTEDBLUE = (155,182,203) 
PLUM = (221,160,221) 

#function here 
def selectedFirst(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update() 

def arrayIntro(): 
    intro = True 
    while intro: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
      if event.type == pygame.MOUSEBUTTONUP: 
       mousePosition = pygame.mouse.get_pos() 

     screen.fill(MUTEDBLUE) 

     textChoice = pygame.font.SysFont('americantypewriter', 20) 

     mousePosition = pygame.mouse.get_pos() 
     mouseClick = pygame.mouse.get_pressed() 

#Top Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (50, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 50, 250, 100)) 

     enterInt = textChoice.render("enterInt", True, NAVYBLUE) 
     screen.blit(enterInt, (135, 90)) 

     if mouseClick[0] ==1: 
      selectedFirst() #change here. Made a new function temporarily to be executed on the click 


     if 325+250 > mousePosition[0] > 325 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (325, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 50, 250, 100)) 

     display = textChoice.render("display", True, NAVYBLUE) 
     screen.blit(display, (414, 90)) 

     if 600+250 > mousePosition[0] > 600 and 50 + 100 > mousePosition[1] > 50: 
      pygame.draw.rect(screen, GRAY, (600, 50, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 50, 250, 100)) 

     countInt = textChoice.render("countInt", True, NAVYBLUE) 
     screen.blit(countInt, (680, 90)) 

#Middle Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (50, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 250, 250, 100)) 

     displayReverse = textChoice.render("displayReverse", True, NAVYBLUE) 
     screen.blit(displayReverse, (102, 287)) 

     if 325+250 > mousePosition[0] > 325 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (325, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 250, 250, 100)) 

     sumInt = textChoice.render("sumInt", True, NAVYBLUE) 
     screen.blit(sumInt, (410, 287)) 

     if 600+250 > mousePosition[0] > 600 and 250 + 100 > mousePosition[1] > 250: 
      pygame.draw.rect(screen, GRAY, (600, 250, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 250, 250, 100)) 

     average = textChoice.render("average", True, NAVYBLUE) 
     screen.blit(average, (685, 287)) 

#Middle Bottom Row Draw Rects 
     if 50+250 > mousePosition[0] > 50 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (50, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 450, 250, 100)) 

     findMaxORfindMin = textChoice.render("findMax/findMin", True, NAVYBLUE) 
     screen.blit(findMaxORfindMin, (95, 488)) 

     if 325+250 > mousePosition[0] > 325 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (325, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 450, 250, 100)) 

     search = textChoice.render("search", True, NAVYBLUE) 
     screen.blit(search, (417, 488)) 

     if 600+250 > mousePosition[0] > 600 and 450 + 100 > mousePosition[1] > 450: 
      pygame.draw.rect(screen, GRAY, (600, 450, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 450, 250, 100)) 

     writeToText = textChoice.render("writeToText", True, NAVYBLUE) 
     screen.blit(writeToText, (665, 488)) 

#Bottom Row Draw Rects 

     if 50+250 > mousePosition[0] > 50 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (50, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (50, 640, 250, 100)) 

     fillFromText = textChoice.render("fillFromText", True, NAVYBLUE) 
     screen.blit(fillFromText, (115, 680)) 

     if 325+250 > mousePosition[0] > 325 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (325, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (325, 640, 250, 100)) 

     searchReplace = textChoice.render("searchReplace", True, NAVYBLUE) 
     screen.blit(searchReplace, (382, 680)) 

     if 600+250 > mousePosition[0] > 600 and 640 + 100 > mousePosition[1] > 640: 
      pygame.draw.rect(screen, GRAY, (600, 640, 250, 100)) 
     else: 
      pygame.draw.rect(screen, WHITE, (600, 640, 250, 100)) 

     wordCount = textChoice.render("wordCount", True, NAVYBLUE) 
     screen.blit(wordCount, (670, 680)) 

     pygame.display.update() 

arrayIntro()

它的评论，我改变了它..

定义一个新的FUNC

def selectedFirst(): 
    runFirst = True 

    while runFirst: 
     for event in pygame.event.get(): 
      if event.type == pygame.QUIT: 
       pygame.quit() 
       sys.exit() 
     screen.fill(MUTEDBLUE) 
     pygame.display.update()

，并点击时，称这

 if mouseClick[0] ==1: 
      selectedFirst()

试试吧出。

http://imgur.com/a/wZkI3

编辑：你不需要写这么大的代码。它可以通过在单个func中循环blitting和鼠标跟踪来减少。

来源

2017-06-11 14:39:58 GLaDOS

谢谢！但是，我想知道代码中有哪些'eval（selected）'？ – Student

另外，当我改变我的代码来合并rects之后，我试图按照你所改变的部分的相同逻辑;但它给了我错误：'TypeError：'pygame.Surface'对象不可调用'，如果你愿意检查它，我已经添加了我上面的代码的新编辑。 – Student

对不起，评估（选定）。在我发布代码之前，我使用了selected = selectedFirst（）。然后我调用代码中运行selectedFirst（）的eval（selected）。我忘了删除它。我认为你可以列出所有可调用的函数funcList = [func1，func2，func3 ...]，当单击鼠标按钮时，可以调用相应的func。防爆。当第三个按钮点击..你调用eval（funcList [3-1]）。 – GLaDOS

如何在点击按钮后清除屏幕？

回答

相关问题