Traceback (most recent call last):
File "redact.py", line 100, in <module>
match = int(re.match(r'\d+', number).group())
AttributeError: 'NoneType' object has no attribute 'group'
输入=(1,2)(5,2)(14,2)(17,2)(1,3)(5,3)(14,3)(17,3)(1,4)(5, 4)(8,4)(9,4)(10,4)(11,4)(14,4)(17,4)(20,4)(21,4)(22,4)(23, 4)(1,5)(2,5)(3,5)(4,5)(5,5)(8,5)(9,5)(10,5)(11,5)(14, 5)(17,5)(20,5)(21,5)(22,5)(23,5)(1,6)(5,6)(8,6)(9,6)(10, 6)(11,6)(14,6)(17,6)(20,6)(23,6)(1,7)(5,7)(8,7)(9,7)(14, 7)(17,7)(20,7)(21,7)(22,7)(23,7)(1,8)(5,8)(8,8)(9,8)(10, 8)(11,8)(14,8)(17,8)(20,8)(21,8)(22,8)(23,8)
输出= >>>上面的错误这是执行以下代码后收到的错误消息:
xcoord = []
regex = ur"\b[0-9,]{1,}[,]\s\b" #regex for x coordinates
result = re.findall(regex,str1)
for number in result: #get x numbers from coordinate
match = int(re.match(r'\d+', number).group())
xcoord.append(match) #now got array of numbers for x
maxValueX = max(xcoord) #biggest x value
ycoord = []
regex = ur"\b[,]\s[0-9,]{1,}\b" #regex for y coordinates
result = re.findall(regex,str1)
for number in result: #get y numbers from coordinate
match = int(re.match(r'\d+', number).group())
ycoord.append(match) #now got array of numbers for y
maxValueY = max(ycoord) #biggest y value
print maxValueX
print maxValueY
它正在搜索的字符串是:“ 5”,“,5”,“,6”,“,3”,”。在两个不同的在线正则表达式生成器上,上述正则表达式非常适合该字符串。为什么它适用于X坐标而不适用于Y坐标?代码完全一样!
(我正在尝试从字符串中获取整数)。
谢谢
无需正则表达式:
str1 = "(8, 5)(9, 5)(10, 5)(11, 5)(14, 5)(17, 5)(20, 5)(21, 5)(22, 5)(23, 5)(1, 6)(5, 6)(8, 6)(9, 6)(10, 6)(11, 6)(14, 6)(17, 6)(20, 6)(23, 6)(1, 7)(5, 7)(8, 7)(9, 7)(14, 7)(17, 7)(20, 7)(21, 7)(22, 7)(23, 7)(1, 8)(5, 8)(8, 8)(9, 8)(10, 8)(11, 8)(14, 8)(17, 8)(20, 8)(21, 8)(22, 8)(23, 8)"
xcoord = [int(element.split(",")[0].strip()) for element in str1[1:-1].split(")(")]
ycoord = [int(element.split(",")[1].strip()) for element in str1[1:-1].split(")(")]
maxValueX = max(xcoord); maxValueY = max(ycoord)
print maxValueX;
print maxValueY;
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