JavaScript中把数字转换为字符串的程序代码

　　var string_value = String(number);

　　string_value = number.toString();

　　var n = 17;

　　binary_string = n.toString(2);                //Evaluates to "10001"

　　octal_string = "0" + n.toString(8);        //Evaluates to "021"

　　hex_string = "0x" + n.toString(16);      //Evaluates to "0x11"

　　var n = 123456.789;

　　n.toFixed(0);                   //"1234567"

　　n.toFixed(2);                  //"123456.79"

　　n.toExponential(1);      //"1.2e+5"

　　n.toExponential(3);      //"1.235e+5"

　　n.toPrecision(4);         //"1.235e+5"

　　n.toPrecision(7);         //"123456.8"