#!/usr/bin/env python3

# -*- coding: utf-8 -*-

"""

@author: 闲欢

"""

import numpy as np

# 连接两个字符串：

print(np.char.add(['hello'], [' world']))

# 连接多个字符串

print(np.char.add(['hello', 'hi'], [' world', ' Tracy']))

# 多重连接

print(np.char.multiply('hello ', 3))

print(np.char.multiply(['hello', 'hi'], 3))

# np.char.center(str , width,fillchar) ：

# str: 字符串，width: 长度，fillchar: 填充字符

print(np.char.center('hello', 20, fillchar='*'))

print(np.char.center(['hello', 'hi'], 19, fillchar='*'))

# 首字母大写

print(np.char.capitalize('hello'))

# 每个单词的首字母大写

print(np.char.title('i love china'))

# 操作字符串

print(np.char.lower('GOOGLE'))

# 操作数组

print(np.char.lower(['I', 'LOVE', 'CHINA']))

# 操作字符串

print(np.char.upper('google'))

# 操作数组

print(np.char.upper(['', 'love', 'china']))

# 分隔符默认为空格

print(np.char.split('do you love china?'))

# 分隔符为 ,

print(np.char.split('yes,i do', sep=','))

# 换行符 \r

print(np.char.splitlines('I\rLove China'))

# 换行符 \n

print(np.char.splitlines('I\nLove China'))

# 换行符 \r\n

print(np.char.splitlines('I\r\nLove China'))

# 将 \t 转成3个tab

print(np.char.expandtabs('i\tlove\tchina', 3))

# 移除字符串头尾的 a 字符

print(np.char.strip('it love china', 'i'))

# 移除数组元素头尾的 a 字符

print(np.char.strip(['it', 'love', 'china'], 'i'))

# 去除左边的空格

print(np.char.lstrip(' china '))

# 去除右边的空格

print(np.char.rstrip(' china '))

# 操作字符串

print(np.char.join(':', 'china'))

# 操作数组

print(np.char.join(':', ['china', 'american']))

# 操作字符串

print(np.char.partition('china', 'i'))

# 操作数组

print(np.char.partition(['china', 'like'], 'i'))

# 指定多个分隔符操作数组元素

print(np.char.join([':', '-'], ['china', 'american']))

# 替换字符串

print(np.char.replace('i love china', 'ov', 'ik'))

# 编码

print(np.char.encode('中国', 'utf-8'))

a = np.char.encode('中国', 'utf-8')

print(a)

# 解码

print(np.char.decode(a, 'utf-8'))