如何按长度10、0-10、11-20等对数组进行分组

def group_array_by_length(arr):
    groups = {}
    for item in arr:
        length = len(item)
        if length not in groups:
            groups[length] = []
        groups[length].append(item)
    
    return groups

def group_array_by_range(arr, start, end):
    groups = {}
    for item in arr:
        length = len(item)
        if start <= length <= end:
            if length not in groups:
                groups[length] = []
            groups[length].append(item)
    
    return groups

# 示例数组
array = ['apple', 'banana', 'orange', 'kiwi', 'pear', 'grape', 'watermelon']

# 按长度分组
length_groups = group_array_by_length(array)
print("按长度分组：")
for length, items in length_groups.items():
    print(f"长度为 {length} 的元素有：{items}")

# 按范围分组
range_groups = group_array_by_range(array, 0, 10)
print("\n按范围分组：")
for length, items in range_groups.items():
    print(f"长度在 {length} 到 {length+10} 之间的元素有：{items}")