[已解决]设置了条件为什么不能生效？

sandaowu

import random

class Fish:
    move = 1
   
class Turtle:
    move = 2
    life = 100
    x = 0
    y = 0
    def born(self,x,y):
        self.x = random.randint(0,x)
        self.y = random.randint(0,y)
        print(self.x,self.y)
        return self.x,self.y
   
    def swim(self,x,y):
        direction = random.randint(1,4)
        print('方向为%d'%direction)
        print('现在的坐标是：x= %d,y= %d'%(self.x,self.y))
        if direction == 1 and x > 0:
            self.x -= self.move
            print('乌龟向左移动两步')
        elif direction == 2 and x < 10:
            print(direction == 2 and x < 10)
            self.x += self.move
            print('乌龟向右移动两步')
        elif direction == 3 and y < 10:
            self.y += self.move
            print('乌龟向上移动两步')
        elif direction == 4 and y > 0:
            self.y -= self.move
            print('乌龟向下移动两步')
   
turtle = Turtle()
x,y = turtle.born(10,10)
while turtle.life >= 0:
    turtle.swim(x,y)
    turtle.life -= 1
    print(turtle.life)

为什么设置了条件，王八还是会游出范围？
现在的坐标是：x= 1,y= -12
乌龟向下移动两步
9
方向为1
现在的坐标是：x= 1,y= -14
乌龟向左移动两步
8
方向为2
现在的坐标是：x= -1,y= -14
True
乌龟向右移动两步
7
方向为2

最佳答案

月排行榜 / 总排行榜

qiuyouzhi

2020-5-19 16:07:28

import random

class Fish:
    move = 1
    
class Turtle:
    move = 2
    life = 100
    x = 0
    y = 0
    def born(self,x,y):
        self.x = random.randint(0,x)
        self.y = random.randint(0,y)
        print(self.x,self.y)
        return self.x,self.y
    
    def swim(self):
        direction = random.randint(1,4)
        print('方向为%d'%direction)
        if self.x > 10:
            self.x = 9
        if self.y > 10:
            self.y = 9
        print('现在的坐标是：x= %d,y= %d'%(self.x,self.y))
        if direction == 1 and self.x > 0:
            self.x -= self.move
            print('乌龟向左移动两步')
        elif direction == 2 and self.x < 10:
            self.x += self.move
            print('乌龟向右移动两步')
        elif direction == 3 and self.y < 10:
            self.y += self.move
            print('乌龟向上移动两步')
        elif direction == 4 and self.y > 0:
            self.y -= self.move
            print('乌龟向下移动两步')
    
turtle = Turtle()
x,y = turtle.born(10,10)
while turtle.life >= 0:
    turtle.swim()
    turtle.life -= 1
    print(turtle.life)

跳转到最佳答案楼层

qiuyouzhi

import random

class Fish:
    move = 1
    
class Turtle:
    move = 2
    life = 100
    x = 0
    y = 0
    def born(self,x,y):
        self.x = random.randint(0,x)
        self.y = random.randint(0,y)
        print(self.x,self.y)
        return self.x,self.y
    
    def swim(self):
        direction = random.randint(1,4)
        print('方向为%d'%direction)
        if self.x > 10:
            self.x = 9
        if self.y > 10:
            self.y = 9
        print('现在的坐标是：x= %d,y= %d'%(self.x,self.y))
        if direction == 1 and self.x > 0:
            self.x -= self.move
            print('乌龟向左移动两步')
        elif direction == 2 and self.x < 10:
            self.x += self.move
            print('乌龟向右移动两步')
        elif direction == 3 and self.y < 10:
            self.y += self.move
            print('乌龟向上移动两步')
        elif direction == 4 and self.y > 0:
            self.y -= self.move
            print('乌龟向下移动两步')
    
turtle = Turtle()
x,y = turtle.born(10,10)
while turtle.life >= 0:
    turtle.swim()
    turtle.life -= 1
    print(turtle.life)

sandaowu

qiuyouzhi 发表于 2020-5-19 16:07

没毛病！