分别用列表以及字典的方法统计统计英文句子"when I was young I would listen to the radio waiting for my favorite songs"中各字符出现的次数并按序输出。

好的，这是一个关于 Python 数据结构的问题。我可以给您答案。

使用列表统计：

sentence = "when I was young I would listen to the radio waiting for my favorite songs"
char_list = list(sentence)
char_count = []

# 统计各字符的出现次数
for char in char_list:
    if char not in char_count:
        char_count.append(char_list.count(char))

# 输出结果
for i in range(len(char_count)):
    print(char_list[i], "出现次数为：", char_count[i])

使用字典统计：

sentence = "when I was young I would listen to the radio waiting for my favorite songs"
char_dict = {}

# 统计各字符的出现次数
for char in sentence:
    if char in char_dict:
        char_dict[char] += 1
    else:
        char_dict[char] = 1

# 按序输出结果
for key in sorted(char_dict):
    print(key, "出现次数为：", char_dict[key])

希望这能解决您的问题。如果您有更多的问题，请直接问我。