代码与前几行相同，但给出错误？

Question

我不停地

TypeError: 'int' object is not subscriptable

在我的函数中。如果我注释掉函数，那么equall（）和gauss（）工作得很好，我所做的只是从它们那里复制代码，并使用stepe（）函数而不是step（）或stepn（）

import numpy as np
import matplotlib.pyplot as plt
from numpy.random import rand,seed,randn

steps = 1
walks = 10000

walk = np.zeros(steps + 1)

def step():
    if rand() < 0.5:
        return 1.0
    return -1.0

def stepn():
    return randn() + 0.5

def stepe():
    return (6*(rand()-0.5))

def equall(walks,steps):
    l = []
    for w in range(walks):
        for s in range(steps):
            walk[s+1] = walk[s] + step()
        l.append(walk[steps])
    return l

def gauss(walks,steps):
    l = []
    for w in range(walks):
        for s in range(steps):
            walk[s+1] = walk[s] + stepn()
        l.append(walk[steps])
    return l

def evenly(walk,steps):
    l = []
    for w in range(walks):
        for s in range(steps):
            walk[s+1] = walk[s] + stepn()
        l.append(walk[steps])
    return l

plt.figure(figsize=(10,7))
plt.hist(equall(walks,steps),bins=15)
plt.show()
plt.hist(gauss(walks,steps),bins=15)
plt.show()
plt.hist(evenly(walks,steps),bins=15)
plt.show()

Answer 1

def evenly(walk,steps):

这里参数walk（而不是walks）屏蔽了具有相同名称的外部变量，并为后续语句walk[s+1] = walk[s] + stepn()定义。我想应该是walks