# -------------------------------------
# 输出首字母
In [1]: from timi_pinyin import get_first_letters

In [2]: get_first_letters("我是中国人")
Out[2]: 'wszgr'
# -------------------------------------


# -------------------------------------
# 按首字母排序
In [6]: device_01 = get_first_letters(input_str="我是费家村南门设备01")

In [7]: device_02 = get_first_letters(input_str="北京费家村南门设备01")

In [8]: sorted([device_01, device_02])
Out[8]: ['bjfjcnmsb01', 'wsfjcnmsb01']
# -------------------------------------


# -------------------------------------
# 输出拼音不带音阶
In [3]: from timi_pinyin import lazy_pinyin

In [4]: lazy_pinyin("我是中国人")
Out[4]: ['wo', 'shi', 'zhong', 'guo', 'ren']
# -------------------------------------


# -------------------------------------
# 输出拼音带音阶
In [5]: from timi_pinyin import pypinyin

In [6]: pypinyin("我是中国人")
Out[6]: [['wǒ'], ['shì'], ['zhōng'], ['guó'], ['rén']]
# -------------------------------------