【判断题】【消耗次数：1】
可使用toString()把基本数据类型转换为字符串类型？
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
下面关于基本数据类型描述错误的是（）。
①
整型int在内存中占用4字节
②
浮点型float在内存中占用8字节
③
字符型char在内存中占用1个字节
④
整型long int 长整型占用4个字节
【单选题】
在JavaScript中，把字符串“123”转换为整型值123的正确方法是（ ）。
①
var str=123; var num=(int)str;
②
var str=123; var num=str.parseInt(str);
③
var str=123; var num=parseInt(str);
④
var str=123; var num=Integer.parseInt(str);
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