保持小数点后两位，不足补小数点或者0.
保持小数点后两位，不足补小数点或者0.
+(NSString*)returnFormatter:(NSString*)stringNumber
{
stringNumber =[NSString stringWithFormat:@"%@",stringNumber];
if([string NumberrangeOfString:@"."].location==NSNotFound) {
NSString* string_comp=[NSString stringWithFormat:@"%@.00",stringNumber];
return string_comp;
}
else
{
NSArray* arrays= [stringNumber componentsSeparatedByString:@"."];
NSString* s_f= [arrays objectAtIndex:0];
NSString* s_e = [arrays objectAtIndex:1];
if(s_e.length>2) {
s_e=[s_e substringWithRange:NSMakeRange(0,2)];
}
elseif(s_e.length==1)
{
s_e=[NSString stringWithFormat:@"%@0",s_e];
}
NSString* string_combine=[NSString stringWithFormat:@"%@.%@",s_f,s_e];
return string_combine;
}
return@"";
}
