Python Matplotlib单个数组。如何放置标记？

我需要帮助在绘图上放置一个标记，其中我有一个单独的数组来绘图。 我从一台仪器接收ASCII格式的数据，我需要显示数据的最大值

data1 = ['+3.613512E+003', '+3.254965E+003', '+2.938281E+003', '+2.678804E+003', '+2.461425E+003', '+2.282802E+003', '+2.128352E+003', '+2.001264E+003', '+1.883186E+003', '+1.774222E+003', '+1.681822E+003', '+1.601852E+003', '+1.524412E+003', '+1.458368E+003', '+1.394319E+003', '+1.338477E+003', '+1.282567E+003', '+1.206847E+003', '+1.305292E+003', '+1.175656E+003', '+1.082040E+003', '+1.050308E+003', '+1.033320E+003', '+9.772695E+002', '+9.437070E+002', '+1.039622E+003', '+8.937933E+002', '+8.677546E+002', '+8.302201E+002', '+8.098771E+002', '+7.839208E+002', '+7.641392E+002', '+7.450735E+002', '+7.270004E+002', '+7.100223E+002', '+6.938470E+002', '+6.777757E+002', '+6.627379E+002', '+6.484218E+002', '+6.346696E+002', '+6.215515E+002', '+6.091346E+002', '+5.969252E+002', '+5.858983E+002', '+5.738594E+002', '+5.632513E+002', '+5.531273E+002', '+5.434016E+002', '+5.338579E+002', '+5.245516E+002', '+5.156342E+002', '+5.069659E+002', '+4.985686E+002', '+4.904806E+002', '+4.827541E+002', 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self.mplwidgetUp.axes.plot(data1,'#3FF235');

现在我的问题是如何在某个值上添加标记。 老实说，我尝试过不同的东西，但我删除了它们，它们都是f.e.的东西

self.mplwidgetUp.axes.plot(data1, marker="o", '#3FF235');

这给了我一个错误：
self.mplwidgetUp.axes.plot（数据1，marker=“o”，“3FF235”）
语法错误：关键字arg之后是非关键字arg

我也尝试过：

self.mplwidgetUp.axes.plot(data1,'#3FF235');
self.mplwidgetUp.axes.plot(data1[270], "ro");

但它给了我一个完全不同的点（在左下角）。其中270是数组的索引，其中是最大值（这是一个示例，到目前为止我还不知道最大值在哪里）

有人能帮我吗？我整天都在为这个问题苦苦挣扎。
提前感谢您使用以下语法：

plot(..., marker="o")

使用的是“关键字”参数，而不是在开头没有

关键字=

的简单“位置”参数，如：

plot(x, y, '#3FF235')

只要“位置”参数在“关键字”参数之前，就可以将两者混合使用。这应该起作用：

plot(x, y, '#3FF235', marker='o')

但这不会：

plot(x, y, marker='o', '#3FF235')

请注意，

x，y

必须是两个独立的参数。如果只想标记点

270

，则必须执行以下操作：

plot(270, data1[270], '#3FF235', marker='o')

要显示实际最大值，请使用

data1 = np.asarray(data1, float)
maxi = data1.argmax()
plot(maxi, data1[maxi], 'ro')  # can combine color and marker in one positional argument

---

关键词arg后面的“非关键词arg”这句话难道不让你想调查这句话的真正含义，而不是只是随机尝试一下吗？一般来说，Python语法

func（a，b）

很好（没有关键字args），

func（a，option=b）

也很好（末尾有一个名为“option”的关键字arg；但是

func（option=b，a）

是不允许的（它不知道如何解释关键字arg

option=b

之后的非关键字arg

a

）。我想，你缺少的关键词是，

color

非常感谢！这是我昨天一整天都在寻找的答案。：）如果我见到你，我会给你买瓶啤酒：）谢谢你的回复！我是python新手，有时候你知道他们会给你一个任务——用python完成它。而且我没有太多的时间读书。不管怎么说，我没有读到这件事是我的错——你是对的。我应该在我有空闲时间的时候去。我喜欢python:）