0_0_19310624_900\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
^
0_0_19310624_900\Main.java:3: 错误: 需要class, interface或enum
System.out.println("请输入一写字符串...");
^
0_0_19310624_900\Main.java:4: 错误: 需要class, interface或enum
String str = sc.next();
^
0_0_19310624_900\Main.java:5: 错误: 需要class, interface或enum
int num = 0;
^
0_0_19310624_900\Main.java:6: 错误: 需要class, interface或enum
for(int i = 0; i < str.length(); i++){
^
0_0_19310624_900\Main.java:6: 错误: 需要class, interface或enum
for(int i = 0; i < str.length(); i++){
^
0_0_19310624_900\Main.java:6: 错误: 需要class, interface或enum
for(int i = 0; i < str.length(); i++){
^
0_0_19310624_900\Main.java:9: 错误: 需要class, interface或enum
num = num + 1;
^
0_0_19310624_900\Main.java:10: 错误: 需要class, interface或enum
} catch (Exception e) {
^
0_0_19310624_900\Main.java:15: 错误: 需要class, interface或enum
}
^
10 个错误
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