生成一个包含所有汉字的字符串 "一"字开始"\4e00 到9fa5

public class StringDemo3 {
    public static void main(String[] args) {
        int i=1;
        StringBuilder sb = new StringBuilder();
        for(char c=‘\u4e00‘; c<=‘\u9fa5‘;c++,i++){
            sb.append(c);
            if(i %50 ==0){
                sb.append("\n");
            }
        }
        System.out.print(sb.toString());
    }
}