1. 从数据库查询结果：
数据库连接：Connect To Database Using Custom Params 用法：Connect To Database Using Custom Params pymysql host=’${base_ip}’,user=’root’,passwd=’aaaa’,db=’aaaa’,port=3306,charset=’utf8′
数据库查询：query 用法：@{db} query ${sql}
退出数据库：Disconnect From Database
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2. 自定义定义数据库查询结果（自定义IP）：
数据库连接：Connect To Database Using Custom Params 用法：Connect To Database Using Custom Params pymysql host=’${ip}’,user=’${username}’,passwd=’${password}’,db=’${db_name}’,port=3306,charset=’utf8′
数据库查询：query 用法：${db} query select 字段 from 表 where 条件
退出数据库：Disconnect From Database
例子：
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3.获得长度为N的相同值的列表
[Arguments] ${num_list} ${list_value} ${mode}=1
[Documentation] 例如：N为3，list_value为None,mode为1则生成一个列表为[‘None’,’None’,’None’]，如果mode为2则生成[None,None,None]
${list} Create list
${num_list} evaluate range(0,${num_list})
: FOR ${i} IN @{num_list}
\ ${list2} run keyword if ${list_value}==” evaluate ${list_value}.decode(‘utf-8’)
\ … ELSE set variable ${list_value}
\ ${string} run keyword if ${mode}==1 evaluate str(${list2})
\ … ELSE set variable ${list2}
\ append to list ${list} ${string}
[Return] ${list}
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4.生成随机手机号码
[Arguments] ${length}=8 @{num}
[Documentation] ${length}=8生成的手机号码位数，不包含开头的3位，默认8位，@{num}:自定义手机号开头三位
${result} evaluate random.choice([‘130′,’133′,’187′,’159′,’180′,’177′,’150′,’156’,@{num}])+””.join(random.choice(“0123456789”)for i in range(${length})) random
[Return] ${result}
—————————————-输出
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5.生成随机字符串
[Arguments] ${num}
[Documentation] ${num}生成的位数，${result}返回的字符串
${result} evaluate “”.join(random.sample(string.letters+string.digits,int(${num}))) random,string
[Return] ${result}
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6.获取N位长度随机整数
[Arguments] ${n} ${type}=1
[Documentation] ${type}==1:默认等于1，返回字符串类型的随机数，等于2时返回整型的随机数，${n}为生成的字符串长度
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${num} Set Variable ${${n}}
${min} Evaluate 10**(${num}-1) math
log ${min}
${max} Evaluate 10**($num)-${1} math
log ${max}
${result} Evaluate random.randint(${min},${max}) random
log ${result}
${result_string} Convert To String ${result}
${rand} Set Variable If ${type}==1 ${result_string} ${result}
[Return] ${rand}
