(base) yanglv@yangle:/mnt/f$ cd C. lanceoleosa_genome -bash: cd: too many arguments
时间: 2024-10-22 14:15:10 浏览: 31
当你尝试使用 `cd` 命令时提示 "too many arguments" 错误,意味着你传递给 `cd` 的参数过多,而实际上这个命令只需要一个参数,即你想要切换到的新目录路径。在你的例子中,你似乎试图跳转到 `/mnt/f/C. lanceoleosa_genome` 目录,但是由于路径中含有空格,可能会导致歧义。
正确的做法应该是去掉路径中的所有空格,并确保只有一个目录名作为参数,或者使用双引号将包含空格的目录路径括起来,使其作为一个整体传递给 `cd`,示例如下:
```bash
# 使用单个目录名
(base) yanglv@yangle:/mnt/f$ cd C.lanceoleosa_genome
# 或者使用双引号包含含有空格的路径
(base) yanglv@yangle:/mnt/f$ cd "C. lanceoleosa_genome"
```
如果你有多个目录层级需要切换,可以逐级输入:
```bash
(base) yanglv@yangle:/mnt/f$ cd ..
(base) yanglv@yangle:/mnt$ cd f/
(base) yanglv@yangle:/mnt/f$ cd C.lanceoleosa_genome
```
这将带你进入目标目录。
相关问题
['{"distance":1548,"oldx":2.0090292129863854,"oldy":1544.1428397435209,"x":"150.020","y":"165.441","angle":0.07454545454544359,"newY":1544.1428397435209,"dip":{"0":{"zangle":353.0731201171875,"xangle":357.38525390625,"yangle":356.912841796875},"1":{"zangle":353.067626953125,"xangle":357.3907470703125,"yangle":356.8963623046875},"2":{"zangle":353.0621337890625,"xangle":357.4017333984375,"yangle":356.8853759765625},"3":{"zangle":353.067626953125,"xangle":357.4127197265625,"yangle":356.8743896484375}},"newdistance":1544.1441466811198,"newX":2.0090292129863854}']python里面如何获取"newX":后的值
可以使用 Python 的 json 库来解析该json字符串,并通过字典的方式获取所需的值。具体代码如下:
```python
import json
# 假设该字符串保存在变量data中
data = '{"distance":1548,"oldx":2.0090292129863854,"oldy":1544.1428397435209,"x":"150.020","y":"165.441","angle":0.07454545454544359,"newY":1544.1428397435209,"dip":{"0":{"zangle":353.0731201171875,"xangle":357.38525390625,"yangle":356.912841796875},"1":{"zangle":353.067626953125,"xangle":357.3907470703125,"yangle":356.8963623046875},"2":{"zangle":353.0621337890625,"xangle":357.4017333984375,"yangle":356.8853759765625},"3":{"zangle":353.067626953125,"xangle":357.4127197265625,"yangle":356.8743896484375}},"newdistance":1544.1441466811198,"newX":2.0090292129863854}'
# 解析json字符串
json_data = json.loads(data)
# 获取newX的值
new_x = json_data['newX']
# 打印newX的值
print(new_x)
```
运行该代码后,会输出`2.0090292129863854`,即"newX"后的值。
mpu6050用偏航角计算旋转圈数c语言
您好!要使用MPU6050计算旋转圈数,您可以使用传感器提供的陀螺仪数据来计算偏航角。下面是一个使用C语言的示例代码:
```c
#include <stdio.h>
#include <wiringPiI2C.h>
// 定义MPU6050地址和寄存器
#define MPU6050_ADDR 0x68
#define MPU6050_REG_XGYRO_H 0x43
#define MPU6050_REG_XGYRO_L 0x44
#define MPU6050_REG_YGYRO_H 0x45
#define MPU6050_REG_YGYRO_L 0x46
#define MPU6050_REG_ZGYRO_H 0x47
#define MPU6050_REG_ZGYRO_L 0x48
// 定义MPU6050的转换因子(根据具体硬件可能需要调整)
#define GYRO_SCALE_FACTOR 131.0
int main() {
// 初始化I2C接口
int fd = wiringPiI2CSetup(MPU6050_ADDR);
if (fd == -1) {
printf("Failed to initialize I2C.\n");
return -1;
}
// 读取陀螺仪数据
short xGyro, yGyro, zGyro;
while (1) {
xGyro = wiringPiI2CReadReg16(fd, MPU6050_REG_XGYRO_H);
yGyro = wiringPiI2CReadReg16(fd, MPU6050_REG_YGYRO_H);
zGyro = wiringPiI2CReadReg16(fd, MPU6050_REG_ZGYRO_H);
// 将陀螺仪数据转换为角度
float xAngle = xGyro / GYRO_SCALE_FACTOR;
float yAngle = yGyro / GYRO_SCALE_FACTOR;
float zAngle = zGyro / GYRO_SCALE_FACTOR;
// 计算偏航角(假设只关注Z轴)
float yaw = zAngle;
// 根据偏航角计算旋转圈数
int rotations = yaw / 360;
printf("Rotations: %d\n", rotations);
}
return 0;
}
```
上述代码使用了wiringPi库来进行I2C通信,并读取了MPU6050的陀螺仪数据。根据陀螺仪数据计算偏航角,并将偏航角转换为旋转圈数。请注意,这只是一个简单的示例,您可能需要根据您的具体硬件和需求进行适当的修改。
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