小编Bre*_*ius的帖子

我正在使用maven来构建和编译一个spring项目,这就是我收到的关于"打开zip文件时出错"的错误.我在这里附上了settings.xml,以显示我配置了右侧代理和pom.xml.

[的Settings.XML]

<proxy>
        <active>true</active>
        <protocol>http</protocol>
        <host>XXXX</host>
        <port>8080</port>
        <username>XXXX</username>
        <password>XXXXX</password>
        <nonProxyHosts>localhost</nonProxyHosts>
     </proxy>

[pom.xml中]

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.wrox</groupId>
  <artifactId>springfirst</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>springfirst</name>
  <url>http://maven.apache.org</url>
    <build>
        <sourceDirectory>src/main/java</sourceDirectory>
        <testSourceDirectory>src/test/java</testSourceDirectory>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
        <testResources>
            <testResource>
                <directory>src/test/java</directory>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
                <filtering>true</filtering>
            </testResource>
            <testResource>
                <directory>src/test/resources</directory>
            </testResource>
        </testResources>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <properties>
        <spring-version>2.0.6</spring-version>
        <junit-version>3.8.2</junit-version>
    </properties>

  <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring-version}</version>
        </dependency> …

enum itProfs {  
    private int sal;
    DEVELOPER(30), ANALYST(20); 
    itProfs(int sal){
        this.sal = sal;
    }
    public int getSal(){
        return sal;
    }   
}

是什么原因？

我有两个问题.

1. freeC 中的函数如何工作？
2. 为什么指针变量会自行更新以存储新地址？

这是我的代码:

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a;
    int *p;
    p = (int *)malloc(sizeof(int));
    *p = 10;
    int *q = p;
    printf("p:%d\n", p);
    printf("q:%d\n", q);
    printf("*p:%d\n", *p);
    printf("*q:%d\n", *q);
    free(p);
    printf("Memory freed.\n");
    p = (int *)malloc(sizeof(int));
    *p = 19;

    printf("p:%d\n", p);
    printf("q:%d\n", q);
    printf("*p:%d\n", *p);
    printf("*q:%d\n", *q);
}

为什么输出是这样的？

p:2067804800
q:2067804800
*p:10
*q:10
Memory freed.
p:2067804800
q:2067804800
*p:19
*q:19