src/main/java/org/springblade/common/utils/DesensitizedUtil.java
@@ -123,6 +123,11 @@ System.out.println("map = " + map); Object o = map.get(a); System.out.println("o = " + o); String names = "张三"; System.out.println("names = " + names.substring(0,1)); String cardid ="360728199205120012"; System.out.println("cardid.substring(cardid.length()-4) = " + cardid.substring(cardid.length() - 4)); }