让Double类型完整显示,不用科学计数法显示E
DecimalFormat df = new DecimalFormat("0");
Double d = new Double("4.99958333E7");
System.out.println(df.format(d));
DecimalFormat df = new DecimalFormat("0");
Double d = new Double("4.99958333E7");
System.out.println(df.format(d));