代码:
String testStr = "abcdef";
for (int i = testStr.length() - 1; i >= 0; i--) {
String subStr = testStr.substring(0, i + 1);
if(StrUtil.isNotBlank(subStr)){
System.out.println("subStr = " + subStr);
}
}
输出:
![](https://img.haomeiwen.com/i26305583/d1a433695d452129.png)
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