npminstallportfinder@1.0.21 ...

importjava.util.Scanner;//一个5位数，判断它是不是回文数。即12321是回文数，个位与万位相同，十位与千位相同。publicclassTest25{publicstaticvoidmain(String[]args){Scannersc=newScanner(System.in);intnum...

importjava.util.Scanner;//给一个不多于5位的正整数，要求：一、求它是几位数，二、逆序打印出各位数字。publicclassTest{publicstaticvoidmain(String[]args){Scannersc=newScanner(System.in);intnum=0;Strin...

//jq判断某字符串是否含有特殊符号functionCheckNum(){//定义数组保存特殊字符varAllNumIsSame=newArray("’","”","。",";",":","<",">","?","|","!","@","#","$","%","^","&",...

18位身份证标准在国家质量技术监督局于1999年7月1日实施的GB11643-1999《公民身份号码》中做了明确的规定。GB11643-1999《公民身份号码》为GB11643-1989《社会保障号码》的修订版，其中指出将原标准名称"社会保障号码"更名为"公民身份号码"，另外GB11643-1999《公民身份号码》从实...