将vcf文件中reads支持数小于10的SNP位点过滤掉，并统计过滤后的SNP位点个数。-SNP site reads the vcf file support is less than 10 filter out and count the number of points the SNP filtered.

基于家系的VCF文件，计算孩子的孟德尔错误率(calculates a child's Mendel error rate based on family-based vcf file)