donly

// 设置标题背景图
[functionButton setBackgroundImage:(i == 0 ? firestImageNormal : othersImageNormal)
                          forState:UIControlStateNormal];

[functionButton setBackgroundImage:(i == 0 ? firestImageHighlighted : othersImageHighlighted)
                          forState:UIControlStateHighlighted];

// 未完

donly

#include<stdio.h>
#include<windows.h>
#include<malloc.h>

int main(void)
{
int c;
int i;
int j;
nihao:

donly

#include<stdio.h>

int main(void)
{
    float a,r1,r2,m; 
    char b,c;
    
    printf("请输入加油量，汽油类型（a,b,c）以及服务类型（f,m,e）\n");
    printf("***************************************************\n");
    printf("请输入:");

donly

#include <stdio.h>

int main (int argc, const char * argv[]) {
    
    int a, b, i, t;
    
    scanf("%d%d", &a, &b);
    
    if (a < b) {
        t = a;

donly

- (IBAction)startOneOffTimer:sender {

    [NSTimer scheduledTimerWithTimeInterval:2.0

             target:self

             selector:@selector(targetMethod:)

             userInfo:[self userInfo]

donly

// declcare
@property (assign) NSTimer *repeatingTimer;

// implements
- (IBAction)startRepeatingTimer:sender {

 

    NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:0.5

donly

// declare
@property (retain) NSTimer *unregisteredTimer;



// implements
- (IBAction)createUnregisteredTimer:sender {

    NSMethodSignature *methodSignature = [self methodSignatureForSelector:@selector(invocationMethod:)];

donly

CLLocationManager *manager = [[CLLocationManager alloc] init];
    if (manager.locationServicesEnabled == NO) {
        UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [servicesDisabledAlert show];
        [servicesDisabledAlert release];
    }

donly

- (IBAction)openGPS:(id)sender {
    if (locationManager == nil) {
        locationManager = [[CLLocationManager alloc] init];
        locationManager.delegate = self;
        locationManager.desiredAccuracy = kCLLocationAccuracyBest;  // 越精确，越耗电！
    }
    
    [locationManager startUpdatingLocation];  // 开始定位
}

donly

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    switch (error.code) {
        case kCLErrorLocationUnknown:
            NSLog(@"The location manager was unable to obtain a location value right now.");
            break;
        case kCLErrorDenied:
            NSLog(@"Access to the location service was denied by the user.");
            break;
        case kCLErrorNetwork: