首先基于Character创建一个角色类，在头文件为其添加弹簧臂和摄像机组件

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UPROPERTY(VisibleAnywhere, Category = "Comp")
    class UCameraComponent* CameraComp;
UPROPERTY(VisibleAnywhere, Category = "Comp")
    class USpringArmComponent* SpringComp;

在构造函数中将相关组件创建出来

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// 所需要添加的头文件
#include "Camera/CameraComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
        // 创建摄像机组件
    CameraComp = CreateDefaultSubobject<UCameraComponent>(TEXT("CameraComp"));
    // 创建弹簧臂组件
    SpringComp = CreateDefaultSubobject<USpringArmComponent>(TEXT("SpringComp"));
    // 将弹簧臂附加到根组件上
    SpringComp->SetupAttachment(RootComponent);
    // 将摄像机组件附加到弹簧臂组件上
    CameraComp->SetupAttachment(SpringComp);
    // 使用Pawn控制旋转
    SpringComp->bUsePawnControlRotation = true;
    CameraComp->bUsePawnControlRotation = true;
    // 如果为真 会跟随控制器移动
    bUseControllerRotationRoll = false;
    bUseControllerRotationYaw = false;
    bUseControllerRotationPitch = false;
    // 旋转朝向移动
    GetCharacterMovement()->bOrientRotationToMovement = true;
    //GetCharacterMovement()->RotationRate = FRotator(0.f, 500.f, 0.f);

回到角色类头文件中，申明所需的移动、视角旋转函数

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void MoveForward(float value);
void MoveRight(float value);
void Turn(float value);
void LookUp(float value);

实现移动、视角旋转函数，并且绑定输入

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void APCharacter::MoveForward(float value)
{
    if (Controller != NULL && value != 0) {
        // 获取控制器旋转
        const FRotator ControllerRotator = Controller->GetControlRotation();
        // 制造一个只有Z轴的旋转
        const FRotator YawRotator(0.f, ControllerRotator.Yaw, 0.f);
        // 获取控制器向前的方向向量 即获取YawRotator的单位长度轴
        const FVector Direction = FRotationMatrix(YawRotator).GetUnitAxis(EAxis::X);
        AddMovementInput(Direction, value);
    }
    
}

void APCharacter::MoveRight(float value)
{
    if (Controller != NULL && value != 0) {
        const FRotator ControllerRotator = Controller->GetControlRotation();
        const FRotator YawRotator(0.f, ControllerRotator.Yaw, 0.f);
        const FVector Direction = FRotationMatrix(YawRotator).GetUnitAxis(EAxis::Y);
        AddMovementInput(Direction, value);
    }
}

void APCharacter::Turn(float value)
{
    if (Controller != NULL && value != 0) {
        AddControllerYawInput(value);
    }
}

void APCharacter::LookUp(float value)
{
    if (Controller != NULL && value != 0) {
        AddControllerPitchInput(value);
    }
}
// Called to bind functionality to input
void APCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
    Super::SetupPlayerInputComponent(PlayerInputComponent);

    PlayerInputComponent->BindAxis("MoveForward", this, &APCharacter::MoveForward);
    PlayerInputComponent->BindAxis("MoveRight", this, &APCharacter::MoveRight);
    PlayerInputComponent->BindAxis("Turn", this, &APCharacter::Turn);
    PlayerInputComponent->BindAxis("LookUp", this, &APCharacter::LookUp);
}

回到虚幻编辑器中，在项目设置中添加，相关的操作映射

Axis Mappings
    MoveForward
        W     Scale 1.0
        S    Scale -1.0
    MoveRight
        D    Scale 1.0
        A    Scale -1.0
    Turn
        Mouse X    Scale 1.0
    LookUp
        Mouse Y    Scale -1.0

再创建一个相关蓝图类，将模型与动画蓝图设置上就完成了