java 如何实现服务熔断

用length()方法、charAt方法结合for循环就行了，
package comgoldentest;
public class TestString {
public static void main(String[] args) {
String str = "你叫神马？我叫Tesson";
for (int i = 0; i < strlength(); i++) {
char item = strcharAt(i);
Systemoutprintln(item);
}

}
}

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