四件套各挡一个坑
运行下面这段程序,填写它打印出来的结果。
guards = {"e": "命令失败就停", "u": "变量没定义就停",
"pipefail": "管道中间失败也算"}
print(str(len(guards)) + "/" + guards["e"] + "/" + guards["pipefail"])
运行下面这段程序,填写它打印出来的结果。
guards = {"e": "命令失败就停", "u": "变量没定义就停",
"pipefail": "管道中间失败也算"}
print(str(len(guards)) + "/" + guards["e"] + "/" + guards["pipefail"])
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