Python清除空字符

mystr = '    hello world and gzy and java and python    '

# 删除左侧空白字符
str1 = mystr.lstrip()
print(str1)

# 删除右侧空白字符
str2 = mystr.rstrip()
print(str2)

# 删除两侧空白字符
str3 = mystr.strip()
print(str3)