如何合并字符串数组和整数数组，并将字符串数组中重复项的相应值相加

def merge_arrays(str_array, int_array):
    dict_values = {}
    
    for i in range(len(int_array)):
        if str_array[i] in dict_values:
            dict_values[str_array[i]] += int_array[i]
        else:
            dict_values[str_array[i]] = int_array[i]
    
    merged_str_array = []
    merged_int_array = []
    
    for key, value in dict_values.items():
        merged_str_array.append(key)
        merged_int_array.append(value)
    
    return merged_str_array, merged_int_array

str_array = ["apple", "banana", "apple", "orange"]
int_array = [1, 2, 3, 4]

merged_str_array, merged_int_array = merge_arrays(str_array, int_array)

print(merged_str_array)  # 输出：['apple', 'banana', 'orange']
print(merged_int_array)  # 输出：[4, 2, 4]