删除数组字典中所有出现的空字符串

# 删除数组中的空字符串
def remove_empty_strings_from_array(arr):
    i = 0
    while i < len(arr):
        if arr[i] == "":
            arr.pop(i)
        else:
            i += 1
    return arr

# 删除字典中值为空字符串的键值对
def remove_empty_strings_from_dict(d):
    keys_to_remove = []
    for key, value in d.items():
        if value == "":
            keys_to_remove.append(key)
    for key in keys_to_remove:
        del d[key]
    return d

# 示例用法
array = ["", "hello", "", "world", ""]
dictionary = {"key1": "", "key2": "value2", "key3": "", "key4": "value4"}

array = remove_empty_strings_from_array(array)
dictionary = remove_empty_strings_from_dict(dictionary)

print(array)  # 输出: ['hello', 'world']
print(dictionary)  # 输出: {'key2': 'value2', 'key4': 'value4'}