| 函数 | 描述 | | ------------------------------------------------------------ | --------------------------------------------------- | | int(x [,base\])[](http://www.runoob.com/python3/python-func-int.html) | 将x转换为一个整数 | | [float(x)](http://www.runoob.com/python3/python-func-float.html) | 将x转换到一个浮点数 | | complex(real [,imag])| 创建一个复数 | | [str(x)](http://www.runoob.com/python3/python-func-str.html) | 将对象 x 转换为字符串 | | [repr(x)](http://www.runoob.com/python3/python-func-repr.html) | 将对象 x 转换为表达式字符串 | | [eval(str)](http://www.runoob.com/python3/python-func-eval.html) | 用来计算在字符串中的有效Python表达式,并返回一个对象 | | [tuple(s)](http://www.runoob.com/python3/python3-func-tuple.html) | 将序列 s 转换为一个元组 | | [list(s)](http://www.runoob.com/python3/python3-att-list-list.html) | 将序列 s 转换为一个列表 | | [set(s)](http://www.runoob.com/python3/python-func-set.html) | 转换为可变集合 | | [dict(d)](http://www.runoob.com/python3/python-func-dict.html) | 创建一个字典。d 必须是一个序列 (key,value)元组。 | | [frozenset(s)](http://www.runoob.com/python3/python-func-frozenset.html) | 转换为不可变集合 | | [chr(x)](http://www.runoob.com/python3/python-func-chr.html) | 将一个整数转换为一个字符 | | [ord(x)](http://www.runoob.com/python3/python-func-ord.html) | 将一个字符转换为它的整数值 | | [hex(x)](http://www.runoob.com/python3/python-func-hex.html) | 将一个整数转换为一个十六进制字符串 | | [oct(x)](http://www.runoob.com/python3/python-func-oct.html) | 将一个整数转换为一个八进制字符串 |