希望错误的代码仍能传达我想要做的事情。我使用枚举(和范围)b / c'计数'当我反而希望它被解释为整数值时被解释为一个字符串。我想创建整数值从0到计数值的数组。如果它有帮助,我的目的是只在给出每个值的频率时创建一个值列表。谢谢!
import csv, sys
outputCSV = open(r"C:\Users\Out.csv")
inputCSV = open(r"C:\Users\Slope.csv")
reader = csv.reader(inputCSV, delimiter = ',')
writer = csv.writer(outputCSV, delimiter = ',')
for row in reader:
count = row[1]
countArray = enumerate(0, count) #make list of consecutive integers from 0 to value of count
while i <= max(countArray):
print row[0] #print row value as many times as there are integers in the range 0 through the max of countArray. The printed row value should have same index as the current count index.
答案 0 :(得分:0)
这里有几个问题。我不确定你要做什么。
1)要消除错误,只需将您的计数转换为整数:
count = int(row[1])
2)创建范围介于0和count之间的列表:
countArray = range(count+1)
3)你有一个无限循环:
# i is not initialized => another error
while i <= max(countArray): # max(countArray) = count => why create the array in the first place?
print row[0] # i is not altered so i <= max(countArray) is always True => infinite loop:
也许你想要的是:
for i in countArray:
print row[0] # That loop works but i don't know if it does what you need
答案 1 :(得分:0)
根据我的理解,CSV文件中的每一行都有一个数字和一个计数;并且您希望为每一行创建一个重复计数次数的列表。
正如您使用它,您将不会收到字符串错误 - 您使用枚举错误,因为它期望迭代作为第一个参数。但在这种情况下,无论如何都不需要枚举。
一般来说,从csv读取的内容是字符串,因此需要将其转换为整数。你可以这样做:
for row in reader:
count = int(row[1])
num = int(row[0])
for i in range(count):
print(num)
或者您可以使用理解并立即获取所有列表:
nums = [[int(row[0])] * int(row[1]) for row in reader]