最近又在搞金額狱窘，有時候會有類似0.0100淮韭，有時候會有類似3.98000001樣子货葬，這時候需要把金額保留兩位有效數(shù)字采幌，有時候需要保留一位有效數(shù)字，有時候金額返回整數(shù)震桶，通過這個方法可以直接恢復到你想要的樣子休傍，如下：
-(NSString *)stringByYouWantWithOriginString:(NSString *)originString{
NSString *MM = @"";
if ([originString containsString:@"."]) {
NSArray *array_XString = [originString componentsSeparatedByString:@"."];
NSString *string_XLast = array_XString.lastObject;
if (string_XLast.length == 1 ) {
MM = [NSString stringWithFormat:@"%.1f",[originString floatValue]];
}else if (string_XLast.length >=2){
MM = [NSString stringWithFormat:@"%.2f",[originString floatValue]];
}
if (string_XLast.length >=2){
if ([MM hasSuffix:@"00"]) {
MM = [NSString stringWithFormat:@"%.0f" , [MM floatValue]];
}else if ([MM hasSuffix:@"0"]){
MM = [NSString stringWithFormat:@"%.1f" , [MM floatValue]];
}
}else if (string_XLast.length ==1 ){
if ([MM hasSuffix:@"0"]) {
MM =[NSString stringWithFormat:@"%.0f" , [MM floatValue]];
}
}
}else{
MM =originString;
}
if ([MM hasSuffix:@".00"]) {
MM = [NSString stringWithFormat:@"%.0f",[MM floatValue]];
}
return MM;
}
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