double value = 3.1457
Double v1 = Math.round(value * 100) * 0.01d;
结果:v1 = 3.15
value = 3.1007
v1 = Math.round(value * 100) * 0.01d;
结果:v1 = 3.1
double value = 3.1457
Double v1 = Math.round(value * 100) * 0.01d;
结果:v1 = 3.15
value = 3.1007
v1 = Math.round(value * 100) * 0.01d;
结果:v1 = 3.1