3、例如，PHP有一个bind _ param方法可以用来正确地替换用户数据。
2、Rock resistivity has frequency dispersion, which causes the variation of param-eters in Archie formula.
4、You can designate parameters as optional or required in the XSL: param element, except when that element is a child of XSL: function, in which case they are always required.
1、This is of the form:@paramparameter-name description
