由于在工作中，经常需要对日期进行格式化，不像后端那样，有方便的方法可调用，可以在date的对象prototype中定义一个format方法，见如下：
str = str.replace(/yyyy|YYYY/,this.getFullYear()); str = str.replace(/yy|YY/,(this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100)); var month = this.getMonth() + 1; str = str.replace(/MM/,month > 9 ? month.toString() : '0' + month); str = str.replace(/M/g,month);
str = str.replace(/w|W/g,Week[this.getDay()]);
str = str.replace(/dd|DD/,this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate()); str = str.replace(/d|D/g,this.getDate());
str = str.replace(/hh|HH/,this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours()); str = str.replace(/h|H/g,this.getHours()); str = str.replace(/mm/,this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes()); str = str.replace(/m/g,this.getMinutes());
str = str.replace(/ss|SS/,this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds()); str = str.replace(/s|S/g,this.getSeconds()); return str; }
调用的时候比较简单,比如：
